Tire chat (nerds only)

Evil96
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Portogruaro, VE IT
4/13/2026 12:43pm
@Evil96 https://www.youtube.com/watch?v=OQhE_JF2j-w  Good rundown of the new Gravity Pro casing. Along with other info. I saw a 2.4 of the Romy and it looked really narrow.. more...

@Evil96 https://www.youtube.com/watch?v=OQhE_JF2j-w  
Good rundown of the new Gravity Pro casing. Along with other info. 
I saw a 2.4 of the Romy and it looked really narrow.. more like a 2.3/2.35-ish 

ha! i was watching it as i got the notification, i feel they've done a pretty poor job with the articles but a great job in these videos explaining the differences, i'd be keen to see an exploded view of what changed on the trail chasing now, also to see how much short is a 2.5 Romy or Tacky vs the super tall Albert for clearance

2
ballz
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Ouagadougou EH
4/13/2026 1:40pm
ballz wrote:
Looks like the Romy availability in 27.5 size is very limited compared to the Hans Dampf. Any plans for adding more 27.5 options, or is 27.5...

Looks like the Romy availability in 27.5 size is very limited compared to the Hans Dampf. Any plans for adding more 27.5 options, or is 27.5 kaput?

schwalbai wrote:
You looking for a 27.5x2.6 i'm guessing? Because all other sizes should be covered.Definitely not kaput, the Albert comes in a 27.5x2.6 Gravity version.Limited mold capacity...

You looking for a 27.5x2.6 i'm guessing? Because all other sizes should be covered.
Definitely not kaput, the Albert comes in a 27.5x2.6 Gravity version.
Limited mold capacity usually dictates new model sizes.


27.5x2.8 Radial versions of some tires are in the works.

I like the 27.5x2.6 Soft SuperTrail Hans Dampf as a fun-inducing front tire for light trail duty. The closest Romy is the 2.5 Gravity radial behemoth that weights almost 1300g, and the 2.4 Romy looks quite a bit narrower than I like them. Oh well.

#650Bforevah

1
schwalbai
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Location
Victoria, BC CA
4/13/2026 2:07pm
ballz wrote:
I like the 27.5x2.6 Soft SuperTrail Hans Dampf as a fun-inducing front tire for light trail duty. The closest Romy is the 2.5 Gravity radial behemoth...

I like the 27.5x2.6 Soft SuperTrail Hans Dampf as a fun-inducing front tire for light trail duty. The closest Romy is the 2.5 Gravity radial behemoth that weights almost 1300g, and the 2.4 Romy looks quite a bit narrower than I like them. Oh well.

#650Bforevah

Sounds like a 27.5x2.5 Trail Pro Romy Radial Soft would be ideal 

2
thegromit
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Location
Durango, CO US
4/13/2026 2:10pm
I appreciate your responses. TC Gravity soft already on order for the rear to pair with the MM up front... been waiting for that!Has the Gravity...

I appreciate your responses. TC Gravity soft already on order for the rear to pair with the MM up front... been waiting for that!

Has the Gravity casing been updated for all treads or only the new TC and Romy? I read through the link and it's not totally clear to me what has been updated... it's more stable and puncture resistant now? 

Thanks!

schwalbai wrote:
Happy to help breakdown all the new tech. We've been excited about this drop, lots of new changes to communicate!All new Gravity Pro casings have been...

Happy to help breakdown all the new tech. We've been excited about this drop, lots of new changes to communicate!

All new Gravity Pro casings have been updated. This is indicated by the blue "Pro" label.
Previous versions of the Albert, Mary, Shredda F/R have the previous design. 

so anyways... 2+2+2 haha

1
jasbushey
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130
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10/6/2015
Location
Durango, CO US
4/13/2026 2:44pm

So tell me @schwalbai or @Fox  what am I putting on my trail bike? SC 5010 in Colorado, lots of backcountry technical singletrack, roots, rocks.  Currently on a WTB Vigilante High Trip + Conti Xynotol Soft Enduro.  Like it.  Also ran DHR max grip front, liked it.  It will be hard for me to go away from my Xynotol.  

I'm confused when I'd choose radial vs diagonal.  If I'm mostly riding natural trails, choose radial?  

How do you choose ultra, soft, mid?  If I'm pedalling a lot and prioritizing that, Soft front, Mid rear?  

Do I go Albert or Tacky Chan front?  I like pushing into a turn, I'd prefer the DHR over Assegai on this bike. 

What casing rear?  I've been known to flat exo+ casing in the past, would never do Exo in rear for comparison.  Conti Enduro held up perfect.  Don't want to lug the 1275g gravity radial. 

Sorta thinking my setup would be Tacky Chan Soft Trail Radial + Roamy Mid Trail Radial?  

Thanks.  Its confusing to try different companies after you've figured out what works on others. 

2
4/13/2026 3:44pm
thegromit wrote:

When do we get the new 2,2,2 block front tire?

This one??

image 88
 I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

6
Fox
Posts
111
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5/19/2011
Location
Durango, CO US
4/13/2026 4:25pm Edited Date/Time 4/13/2026 4:27pm

@jasbushey 

For our trails around Durango, I am really digging the radials with a Magic Mary trail pro radial super soft up front (21-22 psi) and the Albert trail pro soft in the rear (24-25psi), no inserts. Today I ordered a Tacky Chan trail pro radial super soft for the front and Tacky Chan trail pro soft radial soft for the rear. I am really excited to try the Tacky Chan because I loved the DHF tread pattern and it looks similar. I'll probably try a Romy in the back at some point as well depending on how the TC works out. I think the TC will roll faster than the Magic Mary as well and also have stiffer side knobs for a bit more dig in when leaning over. I feel like the Magic Mary is a great tread pattern for our high country trails, but it seems to lack a little hook up on the loose over hard in Horse Gultch. If there is any softness to the dirt, the Magic Mary digs in and hooks up well. 

The difference, for me at least, between the radials and the Maxxis DHF exo+ 2.5 Maxxterra 3c in the front (19-20psi) and the Spec Eliminator Grid Trail T7 with Cushcore XC in the rear (20-21psi) is a notable reduction in small bump chatter that gets transmitted straight to my head and I gotta slow down cuz I just can't keep the bike on line and accurate the way I like to. Head shake means decreased info processing speed, then I get off line and thats when whipeouts happen and I don't like wiping out. When I first put on dual radials, it felt like I got a suspension tune/upgrade but from the tires, which I like even more! The bike is calmer, and I can go faster as a result. As far as outright grip, I feel like the radials grip as well or better than fresh non radial tires with similar tread patterns. As far as rolling resistance, I feel like they roll well enough for me and I'm pretty picky about rolling resistance. I do not like 1200 gram plus tires with sticky rubber for trail riding in SW CO because they feel to slow to spin up and then the roll too slowly. Our lowest rides start at 6500' and our favorite rides often top out over 11k', so rolling resistance, weight, and energy conservation matter around here. Yes, I love how a DH casing feels when I'm smashing down steep terrain, but I do not like it for trail riding cuz it sucks getting it up to speed and riding it uphill. 

Based on what Schwalbai is sayin, it sounds like a Tacky Chan trail pro super soft or soft in front or perhaps a Magic Mary trail pro super soft in front would go well with the Romy trail pro soft for the rear of your 5010 as a good starting point.

I like the Albert in the rear too. I really like the tall profile. It rolls pretty well. Side knobs don't have enough support for front use, but it works pretty well in back here in Dgo.  

For reference, I don't break a lot of rims and I don't get a lot of pinch flats. 

I am a tire nerd. I freakin love fresh tires on my bike and my cars and the radials are a really cool new development. 

3
4/13/2026 4:34pm
Kapolczer wrote:
This one?? I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

This one??

image 88
 I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

Yes, this is the tire many are wanting/waiting for. Would be a good Mary replacement as well. But Mary has such a following, they won't replace it. So, at least bring this one out to the public! 

5
4/14/2026 12:45am
Slavid666 wrote:
Yes, but... The molding artifacts and the mold release agents probably being very low on the pareto chat of reasons why a first run break-in is...

Yes, but... The molding artifacts and the mold release agents probably being very low on the pareto chat of reasons why a first run break-in is a thing. MTB tires rely less on molecular adhesion and much more so on deformation/indentation, road biking is an application where you do rely on molecular adhesion as a primary component of mechanical grip and where scuffing in to remove the mold release agent and break open some of the polymeric chains helps. Same reason you scuff in new tires on any track-car/mc. 

Im my opinion the idea of giving DH tires a few runs to break in is more about getting the casing to loosen up a bit helping with the deformation aspects of improving grip. Cant say that I've ever felt it and said to myself, there we go, casing feels good now, but I have had some of my best runs against the clock on tires that are 2-3 runs in. 

yzedf wrote:
I’ve heard people mention that the Continental dh tires are only good for a couple laps for the pros before the casing gets too loose. Not...

I’ve heard people mention that the Continental dh tires are only good for a couple laps for the pros before the casing gets too loose. Not sure if that’s true, but I certainly noticed mine was softer after a bit. New tire day always feels the best to me, but that’s probably a head game. 

hardbash wrote:

Max Hartenstern mentioned the same about Schwalbe tires iirc.

They need all the support in the casing

Interesting. I off course realize that this stuff doesn’t matter much for us “happy to be out riding” crew, but in the world of incremental improvements it would be interesting to hear from the World Cup pits if they have some protocol for when tires typically perform best and details around the process

1
hardbash
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DE
4/14/2026 6:30am
schwalbai wrote:
Tacky Chan gets radial offerings, updated Ultra Soft compound, and a revised tread pattern (on just the radial variants).This revised tread pattern makes it a...

Tacky Chan gets radial offerings, updated Ultra Soft compound, and a revised tread pattern (on just the radial variants).
This revised tread pattern makes it a lot more friendly during corner transitions. Check it out. 
The Tacky Chan is also replacing the Big Betty.

The ROMY replaces the hans dampf. Trail / All-mountain tire.
It's our fastest rolling radial tire, and has a wide range of appeal.
Comes in a Trail 29x2.4" wide version, great for riders who have tight rear tire clearance.
It's my favorite right now.

hardbash wrote:
Will the DirtyDan come in the radial casing with new ultrasoft rubber on time for next autumn/winter season?The DH casing dans were harsh if you were...

Will the DirtyDan come in the radial casing with new ultrasoft rubber on time for next autumn/winter season?

The DH casing dans were harsh if you were not hauling ass in the mud as soon as you hit some roots or rocks, so I think there the softer casing would help quiet a bit for slower scnearios.

 

Also, did the Radial Trail casing also get an update for more support like the Gravity Radial got?

schwalbai wrote:
Dirty Dan has no immediate plans to go radial.If you want a radial tire for deep mud, i'd recommend a GRAVITY Mary or Shredda F or...

Dirty Dan has no immediate plans to go radial.
If you want a radial tire for deep mud, i'd recommend a GRAVITY Mary or Shredda F or R (many DH riders have been using these).

Trail casing has not been revised in this update afaik.

Okay, thank you!

Will the Dirty Dan get the new Ultrasoft compound for the diagonal casing? I think I saw the Dan as a Gravity Pro somewhere in an overview of the new tires

hardbash
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4/14/2026 6:33am
thegromit wrote:

When do we get the new 2,2,2 block front tire?

Kapolczer wrote:
This one?? I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

This one??

image 88
 I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

Looks like a perfect winter tire in the front. A little slower clogging than a Mary but not as all out mud spikey like a Dan or Shredda F.

I also waited for the release of this tire since I first saw the prototype. Anyways, there are soo many options on the market right now, you can find something similiar from other brands

2
ballz
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Location
Ouagadougou EH
4/14/2026 6:44am
sspomer wrote:
tire installation wonder tool from cushcore - https://www.vitalmtb.com/news/press-release/rotary-tire-tool-radically-fast-and-easy-tire-changes

Is this an opportunity for bike tool companies to give us accessories for their hanger tools to get us something similar for much less $$$?

1
PhoS
Posts
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Location
PNW, WA US
4/14/2026 8:29am
I appreciate your responses. TC Gravity soft already on order for the rear to pair with the MM up front... been waiting for that!Has the Gravity...

I appreciate your responses. TC Gravity soft already on order for the rear to pair with the MM up front... been waiting for that!

Has the Gravity casing been updated for all treads or only the new TC and Romy? I read through the link and it's not totally clear to me what has been updated... it's more stable and puncture resistant now? 

Thanks!

schwalbai wrote:
Happy to help breakdown all the new tech. We've been excited about this drop, lots of new changes to communicate!All new Gravity Pro casings have been...

Happy to help breakdown all the new tech. We've been excited about this drop, lots of new changes to communicate!

All new Gravity Pro casings have been updated. This is indicated by the blue "Pro" label.
Previous versions of the Albert, Mary, Shredda F/R have the previous design. 

The updates look nice. I'm going to stick with MM/TC with the new casings and compound on the DH oriented bikes. I'll probably revisit dual TC on the trail bike later down the line. 

4/14/2026 9:31am

Only DH options. Too heavy for trail bikes, dang. 

1
schwalbai
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Victoria, BC CA
4/14/2026 10:02am
Kapolczer wrote:
This one?? I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

This one??

image 88
 I’m really hoping it’s sooner rather than later, seems like it could be a fantastic option as a front tire. @schwalbai, should I be patient???

Just a prototype at this point.
There was already a lot to focus on with new/updated radial offerings, updated Gravity Pro casing, updated Ultrasoft compound, and our revised nomenclature/structure. 
All of that is covered here btw: https://www.schwalbetires.com/mtb-families

1
AndehM
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597
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Location
El Granada, CA US
4/14/2026 10:26am

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

2
1
jasbushey
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130
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10/6/2015
Location
Durango, CO US
4/14/2026 11:32am
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

Did you try trail casing from Schwalbe?  I'm curious to hear puncture protection vs Exo+ and Enduro casings.  The enduro test had a flaw in that it was the same pressure, so it make it seem significantly easier to puncture than those and even less than Exo. 

AndehM
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El Granada, CA US
4/14/2026 11:50am
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

jasbushey wrote:
Did you try trail casing from Schwalbe?  I'm curious to hear puncture protection vs Exo+ and Enduro casings.  The enduro test had a flaw in that...

Did you try trail casing from Schwalbe?  I'm curious to hear puncture protection vs Exo+ and Enduro casings.  The enduro test had a flaw in that it was the same pressure, so it make it seem significantly easier to puncture than those and even less than Exo. 

I did, and didn't like it because of lack of support.  There's essentially zero rocks in my local trails, but lots of loose steeps and high speed, hard berms.  So I needed a tread that was in between an Albert and Mary with more support.  The Trail MM up front was terrifying in the high speed berms, and the Trail Albert just balloon floated over the loose steeps.  The new TC might work in Gravity, or new Butcher Gravity, but again... those are really heavy tires.  I dunno, I just have a hard time coming to terms with needing a 1,400g tire up front considering I weigh 155 and don't have rocks.

2
Evil96
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Location
Portogruaro, VE IT
4/14/2026 12:15pm
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

jasbushey wrote:
Did you try trail casing from Schwalbe?  I'm curious to hear puncture protection vs Exo+ and Enduro casings.  The enduro test had a flaw in that...

Did you try trail casing from Schwalbe?  I'm curious to hear puncture protection vs Exo+ and Enduro casings.  The enduro test had a flaw in that it was the same pressure, so it make it seem significantly easier to puncture than those and even less than Exo. 

Been riding them for a year and a bit more, 0 problems with them, same as super trail chasing wich is stronger than exo +

1
jasbushey
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Location
Durango, CO US
4/14/2026 12:45pm
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep loose berms aren't that.  The Continental has what you are looking for in my experience.

I'm personally interested as 90% of my rides on are singletrack hand built or pack tracks never built for mountain bikes and I'm curious to hear how this changes performance.  There are some berm / flow trails being built but they aren't the ones I ride most. 

1
AndehM
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El Granada, CA US
4/14/2026 1:10pm
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

jasbushey wrote:
Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep...

Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep loose berms aren't that.  The Continental has what you are looking for in my experience.

I'm personally interested as 90% of my rides on are singletrack hand built or pack tracks never built for mountain bikes and I'm curious to hear how this changes performance.  There are some berm / flow trails being built but they aren't the ones I ride most. 

The reason I'm interested in radial is the grip on off-camber, dust over hard is pretty awesome.  With the right tread pattern (good spacing but well supported) to punch through the loose, and then increased contact patch, I see a lot of appeal provided it doesn't randomly feel like I'm going to roll the bead off the rim.  The thing is, I'm kind of able to already get that running something like a HR3 aired down to like 19 psi in DD casing.

megastoke
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Location
La Grande, OR US
4/14/2026 1:13pm
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

jasbushey wrote:
Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep...

Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep loose berms aren't that.  The Continental has what you are looking for in my experience.

I'm personally interested as 90% of my rides on are singletrack hand built or pack tracks never built for mountain bikes and I'm curious to hear how this changes performance.  There are some berm / flow trails being built but they aren't the ones I ride most. 

Radials are absolutely 100% the move for natural trails. 

3
1llumA
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Location
CA
4/14/2026 3:23pm

Looks like Specialized also quietly launched updated ground control and purgatory (renamed now trail control) with lighter casing (quoted weight are for 29x2.35 or 2.4) but still T7 and T9 softer option available and as per specialized habit, price are relatively low:

Trail Control Grid Trail T7 930g

Trail Control Grid Lite T9 (also available in T7 compound) 860g

Ground Control Grid Lite T5/T7 840g

Ground Control Flex Lite T5/T7 770g 

4
4/14/2026 8:13pm
AndehM wrote:
I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support...

I'd be a lot more tempted to try radials again (from any brand) if they were available in a lighter casing but with good sidewall support.  Full downhill protection & weight are unnecessary for my trails, but I need lateral stiffness for cornering.  It seems to me like it should be able to achieve that with a stiff, mid-height bead insert and less layers under the tread.  EXO+ or Conti Enduro casing is just fine for my riding, although I do appreciate the dampness of DD/MG.

jasbushey wrote:
Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep...

Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep loose berms aren't that.  The Continental has what you are looking for in my experience.

I'm personally interested as 90% of my rides on are singletrack hand built or pack tracks never built for mountain bikes and I'm curious to hear how this changes performance.  There are some berm / flow trails being built but they aren't the ones I ride most. 

AndehM wrote:
The reason I'm interested in radial is the grip on off-camber, dust over hard is pretty awesome.  With the right tread pattern (good spacing but well...

The reason I'm interested in radial is the grip on off-camber, dust over hard is pretty awesome.  With the right tread pattern (good spacing but well supported) to punch through the loose, and then increased contact patch, I see a lot of appeal provided it doesn't randomly feel like I'm going to roll the bead off the rim.  The thing is, I'm kind of able to already get that running something like a HR3 aired down to like 19 psi in DD casing.

I’ll preface this with the note that I am NOT an engineer, but my understanding is that the combo you are describing isn’t quite possible. At least yet. 

The radial orientation is going to give you that compliance at the expense of support. Your options would be to run higher tire pressures, but then you’re losing compliance OR add material to the casing to increase support. But then you’re losing some of that compliance and adding weight. 

andyjr77
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7/13/2012
Location
GB
4/15/2026 2:30am

Bring back the OG Rock Razor Super Gravity but in a true 2.4 or 2.5. Or a Slaughter in Grid Gravity. I miss that era of tough, fast rear Gravity tyres!

5
hardbash
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DE
4/15/2026 2:43am
andyjr77 wrote:
Bring back the OG Rock Razor Super Gravity but in a true 2.4 or 2.5. Or a Slaughter in Grid Gravity. I miss that era of...

Bring back the OG Rock Razor Super Gravity but in a true 2.4 or 2.5. Or a Slaughter in Grid Gravity. I miss that era of tough, fast rear Gravity tyres!

I agree. There are no more gravity friendly semislicks being produced as far as I know, and I miss them. So fun in the summer on harder soil.

I guess they didnt sell very well

1llumA
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CA
4/15/2026 3:21am

Michelin still make the Wild Enduro rear that is pretty close to being a semi-slick in a tough casing.

2
AndehM
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El Granada, CA US
4/15/2026 6:44am
jasbushey wrote:
Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep...

Based on what you described, it seems a gravity diagonal is built for you.  The radial is being marketed as a tool for natural terrain.  Steep loose berms aren't that.  The Continental has what you are looking for in my experience.

I'm personally interested as 90% of my rides on are singletrack hand built or pack tracks never built for mountain bikes and I'm curious to hear how this changes performance.  There are some berm / flow trails being built but they aren't the ones I ride most. 

AndehM wrote:
The reason I'm interested in radial is the grip on off-camber, dust over hard is pretty awesome.  With the right tread pattern (good spacing but well...

The reason I'm interested in radial is the grip on off-camber, dust over hard is pretty awesome.  With the right tread pattern (good spacing but well supported) to punch through the loose, and then increased contact patch, I see a lot of appeal provided it doesn't randomly feel like I'm going to roll the bead off the rim.  The thing is, I'm kind of able to already get that running something like a HR3 aired down to like 19 psi in DD casing.

I’ll preface this with the note that I am NOT an engineer, but my understanding is that the combo you are describing isn’t quite possible. At...

I’ll preface this with the note that I am NOT an engineer, but my understanding is that the combo you are describing isn’t quite possible. At least yet. 

The radial orientation is going to give you that compliance at the expense of support. Your options would be to run higher tire pressures, but then you’re losing compliance OR add material to the casing to increase support. But then you’re losing some of that compliance and adding weight. 

I'd be fine with adding a bit of weight for control.  What I was envisaging was starting with the Trail casing, then adding a stiff non-fabric bead/sidewall insert extending about halfway up the sidewall to help resist roll.  Something like what's added to Conti Enduro or Maxxis EXO+.  Leave the tread layup the same to let it deform into a broader contact patch.  

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