MTB Tech Rumors and Innovation

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JVP
Posts
233
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4/20/2016
Location
Bellingham, WA, USA
3/6/2025 9:52am
segamethod wrote:

What do we have here? 

XS-1270 Eagle Transmission Cassette | CS-XS-1270-A1 | SRAM

10-52t compatible with an HG driver body, huh? Mech Tranny release imminent?

Integrated 10 tooth cog-lockring. I hope they offer a 1 meter breaker bar cassette tool with that. Going to be a lot of these on e-bikes with squid riders camping out in boost in the10t. Fun removal, unless there's some clever detail I'm missing. That said, I'm stoked to see mechanical t-type is almost here!

7
torw
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Bellingham, WA, USA
Fantasy
3/6/2025 9:56am
segamethod wrote:

What do we have here? 

XS-1270 Eagle Transmission Cassette | CS-XS-1270-A1 | SRAM

10-52t compatible with an HG driver body, huh? Mech Tranny release imminent?

This is just the cassette that's used with the OEM only S1000 Transmission. That whole groupset kind of flew under the radar when it launched, but nothing new here. 

11
Primoz
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SI
3/6/2025 10:38am

I think the 10t is just moved outside the freehub and the locking is inside it. It's probably still indexed to the hub in some way. 

3
3/6/2025 11:25am
sspomer wrote:

from our i9 article which is on homepage

Good gravy that's obnoxious. Great ad for Onyx hubs

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2
Simcik
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Loma, CO, USA
3/6/2025 11:37am

I WORK for DT Swiss so this is a shameless plug. No astroturfing here...

We launched new dirt jump wheels today. First time we have used brass nipples in a system wheel. We are also offering the hubs separately. 

D 1900 CLASSIC - Dirt Jump wheels | DT Swiss

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TimBud
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GB
3/6/2025 11:44am
Simcik wrote:
I WORK for DT Swiss so this is a shameless plug. No astroturfing here...We launched new dirt jump wheels today. First time we have used brass...

I WORK for DT Swiss so this is a shameless plug. No astroturfing here...

We launched new dirt jump wheels today. First time we have used brass nipples in a system wheel. We are also offering the hubs separately. 

D 1900 CLASSIC - Dirt Jump wheels | DT Swiss

Just saw those on a Madison (UK distributor).

They look sick. 
Finally someone is building a DJ wheelset that isn’t DMR 😚

5
TimBud
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GB
3/6/2025 11:48am
Primoz wrote:

I think the 10t is just moved outside the freehub and the locking is inside it. It's probably still indexed to the hub in some way. 

Yeah, if its Transmission standard the 10t is further outboard than traditional HG so they’ll have been able to capitalise on that. Got to give them credit for that workaround 

 

3
Primoz
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3/6/2025 12:07pm

Yup, agreed. 

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noodlenosteeze
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Salt Lake City, UT, USA
3/6/2025 12:24pm
ebruner wrote:
transition should have named that jpeg (and project) internally "WarrenG".  ok, I'll show myself out.  nah but seriously, that's an interesting bike.  I'm going...

transition should have named that jpeg (and project) internally "WarrenG".  ok, I'll show myself out.  

nah but seriously, that's an interesting bike.  I'm going to assume, becuase what's the worst that could happen.  Hopefully, that's got a bosch SX and is a light weight ebike.  I'm surprised how few bikes are on the market using that drivetrain.  The norco fluid vlt is a pretty sweet bike that I feel like is under appreciated... I've taken a spin on that bike and the bosch sx has a really natural feeling that benefits from spinning it up with a high cadance.  

Kango wrote:
I just got a Transition Relay. I'm a bit nervous reading about all the reliability issues of the Fazua motor. havent rode it yet as its...

I just got a Transition Relay. I'm a bit nervous reading about all the reliability issues of the Fazua motor. havent rode it yet as its still snow and wet on the trails. I think more and more will be going to the Bosch SX for light weight ebikes.

The Fazua motor when it's working is fantastic. Kinda fitting for a Porsche brand, actually. 

Their stuff has been improving issues wise. If you get an issue the fix is usually permanent and Fazua seems pretty quick to fix it too. 

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3/6/2025 12:48pm
sspomer wrote:

from our i9 article which is on homepage

Good gravy that's obnoxious. Great ad for Onyx hubs

Oh my god no. I found my Hydras to be reasonable when we'll greased, but I've been happily on Onyx for two years now.

9
noodlenosteeze
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Salt Lake City, UT, USA
3/6/2025 12:51pm
Simcik wrote:
I WORK for DT Swiss so this is a shameless plug. No astroturfing here...We launched new dirt jump wheels today. First time we have used brass...

I WORK for DT Swiss so this is a shameless plug. No astroturfing here...

We launched new dirt jump wheels today. First time we have used brass nipples in a system wheel. We are also offering the hubs separately. 

D 1900 CLASSIC - Dirt Jump wheels | DT Swiss

Still riding my old DT F550s that I stole off a 2012 Demo before selling it.. They've moved through 3 different DJ frames and 4 forks now, still on the original hubs and spokes too. 

These might be the first wheels to get me to jump(haha) ship though. 

4
Scontoni
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Christmas Island Shire of Christmas Island, CX
3/6/2025 1:18pm
Primoz wrote:

I think the 10t is just moved outside the freehub and the locking is inside it. It's probably still indexed to the hub in some way. 

The first 5 cogs (10,12,14,16,18t) are one solid removable cluster, so two separate clusters both with HG spline and the lockring is built into the small cluster but spins freely

3
peecee
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Brisbane, AU
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3/6/2025 1:32pm
Kusa wrote:
Was this posted? 

Was this posted? 

May be an image of text

It's such a shame that PON ceased GT, I feel they were heading back in the right direction with race results technology, the new fury seems like the most active bike when you look back as all the slowmo stuff from last years world cups. I heard that the new bikes they had coming in 2025/2026 were amazing from a few different people, I feel all they needed to do it get rid of the worst looking logo to ever grace a modern bike, maybe started factory backed teams in each discipline , and maybe throw some money at bike launches as the Fury when it was released was done very quietly. 

3
Suns_PSD
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Austin, TX, USA
3/6/2025 1:35pm Edited Date/Time 3/6/2025 1:36pm

That new cable Transmission derailleur in combo with the X01 cassette (355 grams) & chain should be a pretty dope set up.

2
3/6/2025 1:36pm
segamethod wrote:

What do we have here? 

XS-1270 Eagle Transmission Cassette | CS-XS-1270-A1 | SRAM

10-52t compatible with an HG driver body, huh? Mech Tranny release imminent?

JVP wrote:
Integrated 10 tooth cog-lockring. I hope they offer a 1 meter breaker bar cassette tool with that. Going to be a lot of these on e-bikes...

Integrated 10 tooth cog-lockring. I hope they offer a 1 meter breaker bar cassette tool with that. Going to be a lot of these on e-bikes with squid riders camping out in boost in the10t. Fun removal, unless there's some clever detail I'm missing. That said, I'm stoked to see mechanical t-type is almost here!

Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd hit 20mph pretty quick no?

Whenever I get another eeb I'm going to run a 30T with an 11-36T Zee drivetrain.

3
2
Etney
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Frankfurt, DE
3/6/2025 1:51pm
Suns_PSD wrote:

That new cable Transmission derailleur in combo with the X01 cassette (355 grams) & chain should be a pretty dope set up.

Not sure how well the transmission derailleurs plays with the last gen eagle casettes.

But a X0 or XX casette is right at 380 grams, an XX SL is 346 grams, so about 200 grams lighter than the SX casette linked earlier, but the SL one is VERY expensive, even at discount.

 

Im actually considering going fully battery free on my Enduro and "downgrading" to one of these derailleurs when they come out

 

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3/6/2025 2:29pm
Suns_PSD wrote:

That new cable Transmission derailleur in combo with the X01 cassette (355 grams) & chain should be a pretty dope set up.

Etney wrote:
Not sure how well the transmission derailleurs plays with the last gen eagle casettes.But a X0 or XX casette is right at 380 grams, an XX...

Not sure how well the transmission derailleurs plays with the last gen eagle casettes.

But a X0 or XX casette is right at 380 grams, an XX SL is 346 grams, so about 200 grams lighter than the SX casette linked earlier, but the SL one is VERY expensive, even at discount.

 

Im actually considering going fully battery free on my Enduro and "downgrading" to one of these derailleurs when they come out

 

The AXS T-type derailleurs absolutely do not play nice with old Eagle cassettes. There's physical interference long before you can even start worrying about shift quality.

5
1
JVP
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Bellingham, WA, USA
3/6/2025 2:38pm
segamethod wrote:

The AXS T-type derailleurs absolutely do not play nice with old Eagle cassettes. There's physical interference long before you can even start worrying about shift quality.

You can actually do the inverse with brilliant results on most?? UDH bikes. T-type cassette, chain and ring with standard Eagle derailleur. Just takes 15 minutes grinding down an all-aluminum UDH hanger to clear the chain.

I'm doing this on my last-gen Norco optic with a GX Eage derailleur (Hall-lock mod as well). Friggin brilliant setup!  Though now with mechanical T-type there will be something just as good from the factory.

7
1
bikelurker
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Bilbao, Vizcaya, ES
3/6/2025 11:46pm
Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd...

Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd hit 20mph pretty quick no?

Whenever I get another eeb I'm going to run a 30T with an 11-36T Zee drivetrain.

I worked for a manufactured that where usually forced by its dealers to warantee rear cassettes with sub 200 milles, because the 11t cog started slipping. And that was even in hybrid style ebikes with a 42t chainring

Javigutz
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Location
Beverly Hills, CA, USA
3/7/2025 6:19am

Hi guys

Anyone have news (or rumors) about the possible next generation Transition Spire? 

2
johann377
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Mosfellsbaer, IS
3/7/2025 6:35am
Javigutz wrote:

Hi guys

Anyone have news (or rumors) about the possible next generation Transition Spire? 

Saved this pic a ways back, no idea if it's the new one or if it's just a one off proto.

b51c468c-e835-4fd9-b5d9-c80283303417
2
roost66
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3/7/2025 6:54am

More pics of the SRAM Motive brake: IMG 2938

9
Mitch7MTB
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Location
Bend, OR, USA
3/7/2025 8:30am
roost66 wrote:
More pics of the SRAM Motive brake:

More pics of the SRAM Motive brake: IMG 2938

That certainly isn't my color palette, but similar to the Maven launch edition, I like seeing a company as large as SRAM do something unique with the launch of a new product - even if it's "just" a non-traditional color. Also, the Maven Ultimate Expert Kit (if you could get your hands on one at launch) was a really excellent deal considering how much it came with for basically the same price as just the brakes alone. 

If only these were purple to match my current Sentinel accent color scheme... I'd be nervously waiting around with a credit card to replace my Code setup.

2
jonkranked
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Norristown, PA, USA
3/7/2025 8:36am
Mitch7MTB wrote:
That certainly isn't my color palette, but similar to the Maven launch edition, I like seeing a company as large as SRAM do something unique with...

That certainly isn't my color palette, but similar to the Maven launch edition, I like seeing a company as large as SRAM do something unique with the launch of a new product - even if it's "just" a non-traditional color. Also, the Maven Ultimate Expert Kit (if you could get your hands on one at launch) was a really excellent deal considering how much it came with for basically the same price as just the brakes alone. 

If only these were purple to match my current Sentinel accent color scheme... I'd be nervously waiting around with a credit card to replace my Code setup.

i hope they do the launch package deal like they did with the Mavens too, that was a killer deal.  

3
Jotegr
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Location
Interior, BC, CA
3/7/2025 9:41am Edited Date/Time 3/7/2025 9:45am
segamethod wrote:

What do we have here? 

XS-1270 Eagle Transmission Cassette | CS-XS-1270-A1 | SRAM

10-52t compatible with an HG driver body, huh? Mech Tranny release imminent?

JVP wrote:
Integrated 10 tooth cog-lockring. I hope they offer a 1 meter breaker bar cassette tool with that. Going to be a lot of these on e-bikes...

Integrated 10 tooth cog-lockring. I hope they offer a 1 meter breaker bar cassette tool with that. Going to be a lot of these on e-bikes with squid riders camping out in boost in the10t. Fun removal, unless there's some clever detail I'm missing. That said, I'm stoked to see mechanical t-type is almost here!

Or Cog-ring, if you will. 

The one nice thing about XD for big torquey boys and ebikes is the fact the system held up much better to torque than soft HG freehub bodies. Not only are you going to have to use the enforcer lever to get the damn lockring off, you'll probably have to employ the hammer to remove the cassette from the body after they've fused together through torque warping. The writeup says EMTB and aluminum freehub bodies so maybe they've put a sleeve or something in the mounting interface to prevent this? 

Kinda funny that we've moved on from people wanting to replace the bigger rings in the cassette (like the original OneUp converter or some E13 options) as a product of spinning up climbs on non-electric MTBs on one by drivetrains to now the 10-14 being the replaceable side because presumably that's where you camp all the time on the ebike spinning at your top out of 32 km/hr. I don't think I've ever worn out that side of a cassette. 

2
WheelNut
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Location
CA
3/7/2025 10:40am
Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd...

Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd hit 20mph pretty quick no?

Whenever I get another eeb I'm going to run a 30T with an 11-36T Zee drivetrain.

People park the chain on the 10T, put it in max boost and pedal at a 30rpm cadence. If you're not putting out much power super low cadence is comfortable. 

3
Evil96
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874
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Portogruaro, VE, IT
3/7/2025 10:43am
roost66 wrote:
More pics of the SRAM Motive brake:

More pics of the SRAM Motive brake: IMG 2938

Mitch7MTB wrote:
That certainly isn't my color palette, but similar to the Maven launch edition, I like seeing a company as large as SRAM do something unique with...

That certainly isn't my color palette, but similar to the Maven launch edition, I like seeing a company as large as SRAM do something unique with the launch of a new product - even if it's "just" a non-traditional color. Also, the Maven Ultimate Expert Kit (if you could get your hands on one at launch) was a really excellent deal considering how much it came with for basically the same price as just the brakes alone. 

If only these were purple to match my current Sentinel accent color scheme... I'd be nervously waiting around with a credit card to replace my Code setup.

What’s stopping you from getting some dominions or hope v4 in purple

2
metadave
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Revelstoke, BC, CA
Fantasy
3/7/2025 10:46am
Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd...

Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd hit 20mph pretty quick no?

Whenever I get another eeb I'm going to run a 30T with an 11-36T Zee drivetrain.

WheelNut wrote:
People park the chain on the 10T, put it in max boost and pedal at a 30rpm cadence. If you're not putting out much power super...

People park the chain on the 10T, put it in max boost and pedal at a 30rpm cadence. If you're not putting out much power super low cadence is comfortable. 

This is why I get yelled at by customers at work because their month old full sus E-bike that they ride around the city is skipping in the small cog. 

6
3/7/2025 10:51am
p6pb27740493

 

The other place has this wild design (3D printed steel)

I get the point is an engineering exercise, not bringing a product to market, but man the torque on those pivots, wild internal leverage ratios

6
Suns_PSD
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Location
Austin, TX, USA
3/7/2025 11:33am
Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd...

Idk how much time anyone is really spending in the 10T gear with 34T and even 36T chainrings coming on modern eebs. Even in boost you'd hit 20mph pretty quick no?

Whenever I get another eeb I'm going to run a 30T with an 11-36T Zee drivetrain.

You wouldn't spend any time in 10th with a 34 or 36, even more so with a 29er rear.

I have no use for above 20mph 98% of the time on my e-bike, but when you need it, you really need it. Jump lines being the best case, road transfers being the other situation. The fast jumps can be downright scary when your e-bike becomes this huge slow turd once crossing over 20 mph, right when you need it to not nose-dive.

I run a 32T front on my mid-power e-bike with a SRAM 11 Speed (10-42) with a mullet rear wheel, and here are some thoughts for you:

1) The gears are too close together and it's very common to have to shift 2x in immediate succession, with a mid-power and a 32T. For a full power, I'd absolutely want a 34T front chainring, just to spread out the gears.

2) Mostly, my gearing is fine, but there are occasions that I wish I had a lower gear than the 42/ 32 (1.31) low end ratio that I have. 36/ 30 is a 1.2, and you might be okay on a full power with less gear, but it's going to be a low cadence and put a lot of stress on parts. And with my preferred 34T up front the low-end gear is only a 1.06. That would be brutal on the bike AND the human.

3) Generally, I can't see a ton of use for a 52T 1st gear on a full power e-bike (unless the assistance breaks down way out on the trails!) but there is an argument to be made for getting more in the middle of the cassette because with my 32 front I spend a lot of time in the higher gears. A 34T combined with a 500% ratio cassette would be helpful for not having to shift so quickly, staying more towards the middle of the cassette, and having the gear range for all conditions. See Linkglide 11 speed for some good ideas, but she's a heavy gal at around 625 grams I think.

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