MTB Tech Rumors and Innovation

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Splayleg
Posts
92
Joined
2/9/2017
Location
Los Gatos, CA, USA
10/23/2024 4:12pm
segamethod wrote:

New Sentinel has a reach in size L shorter than the Smuggler. The pendulum finally swings?

Suns_PSD wrote:
I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach. The bikes need to offer 10mm of reach adjust...

I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach.

 

The bikes need to offer 10mm of reach adjust for those of us in between.

 

That said, the new Sentinel looks like an ideal AM rig to my eyes.

That’s why any new bike not running a 56/56 headset standard to allow for reach adjust with no drawbacks is blowing it

3
marzbomber888
Posts
187
Joined
6/25/2023
Location
Vancouver, WA, USA
10/23/2024 5:24pm
segamethod wrote:

New Sentinel has a reach in size L shorter than the Smuggler. The pendulum finally swings?

Suns_PSD wrote:
I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach. The bikes need to offer 10mm of reach adjust...

I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach.

 

The bikes need to offer 10mm of reach adjust for those of us in between.

 

That said, the new Sentinel looks like an ideal AM rig to my eyes.

Splayleg wrote:

That’s why any new bike not running a 56/56 headset standard to allow for reach adjust with no drawbacks is blowing it

Every bike should be 56/56

5
nskerb
Posts
372
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3/3/2020
Location
Kelso, WA, USA
10/23/2024 6:50pm

Is the scout dead? It isn't even on the Transition website. 

I would be sad, but also wouldn't blame them for killing it. I was a scout fanboy. I went with a Norco sight in 2020 because of reasons, but one of them was because they also had a dedicated 27.5 bike. I was still a hold out, but the next bike I buy will be 100% be a mullet. It still makes me sad and slightly nostalgic though. I remember when 27.5 felt like big monster truck awesome size. 

6
Pappas717
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46
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1/13/2022
Location
Port Washington, NY, USA
Fantasy
10/23/2024 7:02pm
nskerb wrote:
Is the scout dead? It isn't even on the Transition website. I would be sad, but also wouldn't blame them for killing it. I was a scout...

Is the scout dead? It isn't even on the Transition website. 

I would be sad, but also wouldn't blame them for killing it. I was a scout fanboy. I went with a Norco sight in 2020 because of reasons, but one of them was because they also had a dedicated 27.5 bike. I was still a hold out, but the next bike I buy will be 100% be a mullet. It still makes me sad and slightly nostalgic though. I remember when 27.5 felt like big monster truck awesome size. 

The memo to bike biz went out over a year ago. Dual 27.5 is dead except on XS or sm frames. But don't say anything till u get rid of your inventory. 

9
2
Glory831Guy
Posts
153
Joined
10/21/2023
Location
Santa Cruz, CA, USA
10/23/2024 7:06pm

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

5
jalopyj
Posts
113
Joined
10/23/2023
Location
Concord, CA, USA
Fantasy
10/23/2024 7:15pm
Suns_PSD wrote:
I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach. The bikes need to offer 10mm of reach adjust...

I really dislike that 95% of size L's have a 475mm Reach and XLs have a 500m reach.

 

The bikes need to offer 10mm of reach adjust for those of us in between.

 

That said, the new Sentinel looks like an ideal AM rig to my eyes.

Splayleg wrote:

That’s why any new bike not running a 56/56 headset standard to allow for reach adjust with no drawbacks is blowing it

Every bike should be 56/56

Unless you’re running a straight steerer fork, even if you’ve got a 56/56 head tube, I think you’d need to run an external lower cup for a reach adj headset? I think that eliminates a lot of the benefits.

5
1
marzbomber888
Posts
187
Joined
6/25/2023
Location
Vancouver, WA, USA
10/23/2024 8:03pm
Splayleg wrote:

That’s why any new bike not running a 56/56 headset standard to allow for reach adjust with no drawbacks is blowing it

Every bike should be 56/56

jalopyj wrote:
Unless you’re running a straight steerer fork, even if you’ve got a 56/56 head tube, I think you’d need to run an external lower cup for...

Unless you’re running a straight steerer fork, even if you’ve got a 56/56 head tube, I think you’d need to run an external lower cup for a reach adj headset? I think that eliminates a lot of the benefits.

What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to do 8 mm front and back with a straight. Fork and five mill front and back with a standard tapered fork  The only thing that offers more is that stupid ZS66 that a few companies use for E bikes for some reason.   

7
1
pinkrobe
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271
Joined
5/16/2015
Location
Revelstoke, BC, CA
10/23/2024 8:24pm
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

I don't know if you can get them aftermarket, but Rocky Mountain sold the 2019 (?) Pipeline/Instinct with a ~10mm crown spacer so you could switch front wheels and get the same geo. It sat under the crown race I think. I feel like it would be relatively easy to make one, but I am no engineer.

5
jalopyj
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Location
Concord, CA, USA
Fantasy
10/23/2024 8:29pm

Every bike should be 56/56

jalopyj wrote:
Unless you’re running a straight steerer fork, even if you’ve got a 56/56 head tube, I think you’d need to run an external lower cup for...

Unless you’re running a straight steerer fork, even if you’ve got a 56/56 head tube, I think you’d need to run an external lower cup for a reach adj headset? I think that eliminates a lot of the benefits.

What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to...

What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to do 8 mm front and back with a straight. Fork and five mill front and back with a standard tapered fork  The only thing that offers more is that stupid ZS66 that a few companies use for E bikes for some reason.   

You right. Got my facts twisted. 

2
metadave
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Location
Revelstoke, BC, CA
Fantasy
10/23/2024 9:20pm
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

pinkrobe wrote:
I don't know if you can get them aftermarket, but Rocky Mountain sold the 2019 (?) Pipeline/Instinct with a ~10mm crown spacer so you could switch...

I don't know if you can get them aftermarket, but Rocky Mountain sold the 2019 (?) Pipeline/Instinct with a ~10mm crown spacer so you could switch front wheels and get the same geo. It sat under the crown race I think. I feel like it would be relatively easy to make one, but I am no engineer.

That was actually a ZS and EC cup set that you would swap out, pretty easy to do with a new lower cup if you can get the right ones. But that was also for a 29/27.5+ wheel mix which are close to the same size, so you might need a bit more to get something from it. 

2
ShapeThings
Posts
130
Joined
8/19/2018
Location
Oakland, CA, USA
10/23/2024 9:22pm
What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to...

What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to do 8 mm front and back with a straight. Fork and five mill front and back with a standard tapered fork  The only thing that offers more is that stupid ZS66 that a few companies use for E bikes for some reason.   

Who makes a tapered steerer compatible reach adjust ZS56/56? Work components only offers a ZS56 top, EC56 bottom for 1.125x1.5 tapered. They have reach adjusts for ZS56/66 and a ZS56/56 for 1.125 steerers. 

3
kperras
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186
Joined
12/19/2012
Location
CA
10/23/2024 9:50pm
What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to...

What are you talking about? The zero stack 56 headset all allows for the largest room of any headset that’s available.  You should be able to do 8 mm front and back with a straight. Fork and five mill front and back with a standard tapered fork  The only thing that offers more is that stupid ZS66 that a few companies use for E bikes for some reason.   

Who makes a tapered steerer compatible reach adjust ZS56/56? Work components only offers a ZS56 top, EC56 bottom for 1.125x1.5 tapered. They have reach adjusts for...

Who makes a tapered steerer compatible reach adjust ZS56/56? Work components only offers a ZS56 top, EC56 bottom for 1.125x1.5 tapered. They have reach adjusts for ZS56/66 and a ZS56/56 for 1.125 steerers. 

You cannot adjust the lower bearing position fore-aft in a tapered 1.5, ZS56 cup. There is 0 room for that. 

You can adjust the reach by a total of 10mm in a ZS66 cup.

8
TEAMROBOT
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Los Angeles, CA, USA
Fantasy
10/23/2024 10:04pm Edited Date/Time 10/23/2024 10:12pm
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

6
Primoz
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4676
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8/1/2009
Location
SI
10/23/2024 10:07pm
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

TEAMROBOT wrote:
You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm...

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

To keep the ground to headset distance the same, to keep the geometry of the bike the same. 

A 29 fork is taller, but so is the axle compared to the ground. Putting a 27" wheel in a 29er fork will still drop the front end. 

5
10/23/2024 11:32pm Edited Date/Time 10/23/2024 11:35pm

A standardized (blasphemy!) oval'ish headset standard would be awesome that give +-10mm reach/lots of angle adjust

14
bikelurker
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Bilbao, Vizcaya, ES
10/24/2024 2:22am Edited Date/Time 10/24/2024 2:22am
Marcus J wrote:

A standardized (blasphemy!) oval'ish headset standard would be awesome that give +-10mm reach/lots of angle adjust

As if bikes aren't expensive enough already, with those pesky round interference holes in place. Sounds like a good idea but I suppose it would be very dificult to implement, because of distortion/alignement issues. We can't afford the quality needed for that, with bikes costing 10k already, as shitly made as most of them are.

8
j0lsrud
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Location
NO
10/24/2024 3:18am
Marcus J wrote:

A standardized (blasphemy!) oval'ish headset standard would be awesome that give +-10mm reach/lots of angle adjust

bikelurker wrote:
As if bikes aren't expensive enough already, with those pesky round interference holes in place. Sounds like a good idea but I suppose it would be...

As if bikes aren't expensive enough already, with those pesky round interference holes in place. Sounds like a good idea but I suppose it would be very dificult to implement, because of distortion/alignement issues. We can't afford the quality needed for that, with bikes costing 10k already, as shitly made as most of them are.

Canyon has a neat solution for reach adjustment on the Sender/ Strive. To sets of headset "cups" so the reach is 0 or + - 5mm. It would also be easier to make angle sets etc.

Watch the video about reach adjustments here:

https://www.canyon.com/en-gb/customer-service/mountain/sender/#video=adjust-reach-sender-cfr-2023 

9
bikelurker
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Bilbao, Vizcaya, ES
10/24/2024 3:47am
Marcus J wrote:

A standardized (blasphemy!) oval'ish headset standard would be awesome that give +-10mm reach/lots of angle adjust

bikelurker wrote:
As if bikes aren't expensive enough already, with those pesky round interference holes in place. Sounds like a good idea but I suppose it would be...

As if bikes aren't expensive enough already, with those pesky round interference holes in place. Sounds like a good idea but I suppose it would be very dificult to implement, because of distortion/alignement issues. We can't afford the quality needed for that, with bikes costing 10k already, as shitly made as most of them are.

j0lsrud wrote:
Canyon has a neat solution for reach adjustment on the Sender/ Strive. To sets of headset "cups" so the reach is 0 or + - 5mm...

Canyon has a neat solution for reach adjustment on the Sender/ Strive. To sets of headset "cups" so the reach is 0 or + - 5mm. It would also be easier to make angle sets etc.

Watch the video about reach adjustments here:

https://www.canyon.com/en-gb/customer-service/mountain/sender/#video=adjust-reach-sender-cfr-2023 

I stand corrected😉

 

3
10/24/2024 4:49am

https://ridegg.com/pages/geoadjust-headset-tuning

Guerilla gravity had some as well. And there is the Specialized Stumpy Evo / Levo etc one for angle adjustment, and Trek has something similar I think.

2
ex-ballz
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545
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Ouagadougou, EH
10/24/2024 5:42am Edited Date/Time 10/24/2024 5:43am
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

TEAMROBOT wrote:
You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm...

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

These work fine. I use them for making A2C longer or compensating for smaller wheel diameter when fiddling with 27.5 wheels in MX or full 29 setups. They are a super tight fit though, and I am not sure if they can ever be removed after installed and fully seated.

1
jonkranked
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1207
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Location
Norristown, PA, USA
10/24/2024 5:49am
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

TEAMROBOT wrote:
You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm...

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

cane creek still offers a +3mm and +6mm crown race.  

someone else use to make a 10mm, but my google-fu is failing me.  i'll try again after more coffee. 

1
jonkranked
Posts
1207
Joined
5/5/2016
Location
Norristown, PA, USA
10/24/2024 5:56am
Marcus J wrote:
https://ridegg.com/pages/geoadjust-headset-tuningGuerilla gravity had some as well. And there is the Specialized Stumpy Evo / Levo etc one for angle adjustment, and Trek has something similar...

https://ridegg.com/pages/geoadjust-headset-tuning

Guerilla gravity had some as well. And there is the Specialized Stumpy Evo / Levo etc one for angle adjustment, and Trek has something similar I think.

the GG ones were a little different - since the frames had built in reach adjust - which means they are only compatible with the GG revved frames. it was an extra widget that went into the frame/headtube, and the headset bearing went into that. 

1
Jotegr
Posts
377
Joined
6/28/2024
Location
Interior, BC, CA
10/24/2024 5:59am
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

TEAMROBOT wrote:
You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm...

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

Any Rocky mountain dealer should have dozens of lower cups that came with every instinct to allow them to be converted to pipelines for the 2017-2020 generation.

Cane creek also makes an extended crown race but its like 6mm.

1
10/24/2024 6:01am
Marcus J wrote:
https://ridegg.com/pages/geoadjust-headset-tuningGuerilla gravity had some as well. And there is the Specialized Stumpy Evo / Levo etc one for angle adjustment, and Trek has something similar...

https://ridegg.com/pages/geoadjust-headset-tuning

Guerilla gravity had some as well. And there is the Specialized Stumpy Evo / Levo etc one for angle adjustment, and Trek has something similar I think.

jonkranked wrote:
the GG ones were a little different - since the frames had built in reach adjust - which means they are only compatible with the GG...

the GG ones were a little different - since the frames had built in reach adjust - which means they are only compatible with the GG revved frames. it was an extra widget that went into the frame/headtube, and the headset bearing went into that. 

Yes, all the current ones are like that, only compatible with the frame they are made for. A standardized size that does this would be nice. In a way, all headsets except IS has "an extra widget that went into the frame/headtube" Smile

10/24/2024 6:16am

Chiming in to the running smaller wheels and correcting geo: I've used a Cane Creek Angleset to make a full 29er with no flip chip mullet. The lower cup is 10mm and with it in the +1 steepening position paired with a 10mm longer fork it gets the BB back close to stock. I did this on an ebike and didn't bang the motor up more than usual.

Headset routing is the devil to most people because of maintenance, but giving up these adjustment options, reach and head angle are why it's the devil to me.

5
UfuS78
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40
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3/23/2014
Location
Bielsko, PL
10/24/2024 6:18am

New CRAFTY

 

IMG 2856 0
5
HexonJuan
Posts
407
Joined
6/10/2015
Location
USA
10/24/2024 6:52am
One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've...

One of the millions of companies selling billet pedals and stems should start selling spacers for 29er forks that optimize geo for 27.5 front wheels. I've heard of many pro riders using these, but I'm not aware of any company currently selling them. 

Depending on your set up, they exist: HS Extension – Production Privée

I'm running one on a 160 Status with a 29er fork. So far, so good. Going from a 29 to 27.5 front likely provided a bigger feel difference than any mm or two difference in front end height did. 

2
10/24/2024 7:28am
TEAMROBOT wrote:
You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm...

You mean something like this? Not sure why you'd want to make a 29" fork even taller for a 27.5" front wheel, as it's already 20mm taller than an equivalent 27.5" fork. But if you did, Reverse Components has you covered: https://reverse-components-usa.com/collections/headsets/products/reverse-angle-spacer

 

[EDIT: Wolf Tooth used to make one too that pressed into the lower headtube, but it's discontinued now. Probably because it's pretty sketchy. Specialized famously shipped their first gen 650b Stumpjumper with an extended lower headset cup as well, because it was a repurposed 29" front triangle).

Here;s a +15mm one that I use in place of a lock block that was preventing down tube contact. This plus the +10mm from a higher travel fork and I got 1 degree more needed headangle 

https://www.ninerbikes.com/niner-headset-zs-lower-cup/

1
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