MTB Tech Rumors and Innovation

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bcurrancy
Posts
22
Joined
11/10/2022
Location
Waitsfield, VT, USA
6/3/2025 10:57am
Propain put their Sresh SL teaser out with a bunch of infohttps://www.propain-bikes.com/us/sresh-sl-teaser/

Propain put their Sresh SL teaser out with a bunch of info
https://www.propain-bikes.com/us/sresh-sl-teaser/
Annotation 2025-06-03 085133.jpg?VersionId=n NRGBOAspTJOPZ0GVBJU7

Etney wrote:

Maybe not possible to tell from the pic but, anyone able to tell what motor it uses?

TQ hpr60

5
6/3/2025 11:29am
Nobble wrote:
While I would love to be able to run odd sized chainrings again, I’d be pretty shocked if Sram has figured out a way to work...

While I would love to be able to run odd sized chainrings again, I’d be pretty shocked if Sram has figured out a way to work around how much halflink chains stretch.

The shadow supreme is pretty beefy, but i don't see that playing well with gears...

2
roost66
Posts
115
Joined
2/4/2024
Location
Potsdam, NY, USA
Fantasy
6/3/2025 12:09pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

4
jonkranked
Posts
1207
Joined
5/5/2016
Location
Norristown, PA, USA
6/3/2025 12:16pm
lloyd506 wrote:

More like reinventing the half-link chain. 

Nobble wrote:
While I would love to be able to run odd sized chainrings again, I’d be pretty shocked if Sram has figured out a way to work...

While I would love to be able to run odd sized chainrings again, I’d be pretty shocked if Sram has figured out a way to work around how much halflink chains stretch.

make it massive like bmx chains. 

2
6/3/2025 12:18pm
Propain put their Sresh SL teaser out with a bunch of infohttps://www.propain-bikes.com/us/sresh-sl-teaser/

Propain put their Sresh SL teaser out with a bunch of info
https://www.propain-bikes.com/us/sresh-sl-teaser/
Annotation 2025-06-03 085133.jpg?VersionId=n NRGBOAspTJOPZ0GVBJU7

Really liking this trend of SL eebs having removable batteries. Put the small one on for after work laps and then the big one (or extra small one in the shuttle truck) on for an all day mission.

4
6/3/2025 12:23pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

roost66 wrote:

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

Yeti engineers when discussing how many bearings to use: 48d

30
6/3/2025 12:48pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

roost66 wrote:

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

Poleczechy wrote:
Yeti engineers when discussing how many bearings to use:

Yeti engineers when discussing how many bearings to use: 48d

I annoyingly just thought of a better meme: 

9w3x27
43
Trocko
Posts
191
Joined
11/23/2010
Location
Rocky, CO, USA
6/3/2025 1:40pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

roost66 wrote:

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

If you’ve owned or worked on a yeti with switch infinity, you’d probably be happy with more bearings instead

25
3
Nobble
Posts
226
Joined
9/24/2010
Location
Lakewood, CO, USA
6/3/2025 2:13pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

roost66 wrote:

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

Trocko wrote:

If you’ve owned or worked on a yeti with switch infinity, you’d probably be happy with more bearings instead

It’s easy to work on, throw away the old link, install the new one, be $300 poorer.

15
Evil96
Posts
874
Joined
8/21/2014
Location
Portogruaro, VE, IT
6/3/2025 2:17pm
Nobble wrote:

It’s easy to work on, throw away the old link, install the new one, be $300 poorer.

That applies if you’re not the first owner, if you are, well then you get a free new switch 

Nobble
Posts
226
Joined
9/24/2010
Location
Lakewood, CO, USA
6/3/2025 3:30pm
Nobble wrote:

It’s easy to work on, throw away the old link, install the new one, be $300 poorer.

Evil96 wrote:

That applies if you’re not the first owner, if you are, well then you get a free new switch 

Really? All their warranty policy says is lifetime against manufacturing defects not wear and tear.

3
dwhere
Posts
209
Joined
10/5/2023
Location
dirty, DE, USA
Fantasy
6/3/2025 3:34pm
Nobble wrote:

It’s easy to work on, throw away the old link, install the new one, be $300 poorer.

Evil96 wrote:

That applies if you’re not the first owner, if you are, well then you get a free new switch 

Nobble wrote:

Really? All their warranty policy says is lifetime against manufacturing defects not wear and tear.

I have had an si bike for 5 years now. They are way easier to service than replacing a bearing. When I noticed a little wear they sent me a new one no questions asked. 

7
6/3/2025 4:14pm

Sram bought out ochain.

woah! hmmmm what will they do to it...

It would be real cool if it came stock on some builds, but knowing the bike industry, they would put it on bikes that don't need it just for the hype beasts out there. Integrated Dub cranks would be a plus too.

1
6/3/2025 4:58pm

Sram bought out ochain.

woah! hmmmm what will they do to it...

It would be real cool if it came stock on some builds, but knowing the bike industry, they would put it on bikes that don't need...

It would be real cool if it came stock on some builds, but knowing the bike industry, they would put it on bikes that don't need it just for the hype beasts out there. Integrated Dub cranks would be a plus too.

You can option it on the "new" Tyee

1
Evil96
Posts
874
Joined
8/21/2014
Location
Portogruaro, VE, IT
6/3/2025 5:18pm
Nobble wrote:

Really? All their warranty policy says is lifetime against manufacturing defects not wear and tear.

Yes, if it shows any wear you'll get a new one, so it's really not as painful as people think

3
ahleic09
Posts
90
Joined
7/25/2018
Location
Bend, OR, USA
6/3/2025 7:17pm Edited Date/Time 6/3/2025 7:18pm

Maybe I missed it on here: did anyone catch the spec announcement that MY26 Stumpjumpers will now be sold as stumpjumper evos with a 160 mm fork and piggies back genie shock?


If nothing else it seems like an interesting branding move so close to the release of the 15

9
nato
Posts
17
Joined
11/25/2022
Location
Christchurch, NZ
6/3/2025 9:25pm
ahleic09 wrote:
Maybe I missed it on here: did anyone catch the spec announcement that MY26 Stumpjumpers will now be sold as stumpjumper evos with a 160 mm...

Maybe I missed it on here: did anyone catch the spec announcement that MY26 Stumpjumpers will now be sold as stumpjumper evos with a 160 mm fork and piggies back genie shock?


If nothing else it seems like an interesting branding move so close to the release of the 15

...but will they have cable ports for us poor people / those of us that prefer mechanical?

5
6/3/2025 9:32pm
Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's...

Yeti just dropped it's second-ever e-bike, the new MTe. It's pretty much a smaller version of their 160e in many ways, and is equipped with TQ's new HPR 60 drive unit. Full details and review - https://www.vitalmtb.com/product/guide/e-bikes/yeti/mte-66241 

Yeti Details-3Yeti Details-21.jpg?VersionId=29s7DzD8mI7vXRbNGRUxavg.Yp3SbYeti Details-24.jpg?VersionId=bGQCp5nmVAz6jD0lP2OR8

Yeti Details-6 0.jpg?VersionId=xL8

Highlights

- 145mm rear wheel travel // 160mm fork (compatible with up to 180mm forks)
- Carbon frame enhanced with Vectran plies
- 29-inch wheels with mullet compatibility via a flip chip
- Sixfinity suspension design
- TQ HPR 60 Drive Unit
- 290Wh or 580Wh battery options
- Integrated removable battery
- Integrated top tube display
- Adjustable leverage rate
- 64-degree head tube angle
- 449mm chainstay length
- Internal cable routing
- 12X148 Boost rear spacing
- Sizes: S - XL
- 3 build kits
- MSRP: C2 Eagle 90 Transmission - $9,850 | T3 XO Transmission - $12,650 | T4 XX Transmission - $14,300
- Weight (M, T3 Build, no pedals): 45 lbs (20.4 kgs)

roost66 wrote:

Better have a bearing warranty for that price, 16 bearings. Bearing kit cost $220.  

Why? It's a $14,000 Yeti e-bike, if $220 for bearings is an issue then its not the bike for you to begin with. There's also bikes out there with half as many bearings that cost even more for a kit because of the stupid sizes they use.

It's crazy how people will complain about those kinds of costs but will happily destroy the XX1 groupset in 500k because they cheaped out on chain lube.....

25
6/3/2025 9:47pm
Why? It's a $14,000 Yeti e-bike, if $220 for bearings is an issue then its not the bike for you to begin with. There's also bikes...

Why? It's a $14,000 Yeti e-bike, if $220 for bearings is an issue then its not the bike for you to begin with. There's also bikes out there with half as many bearings that cost even more for a kit because of the stupid sizes they use.

It's crazy how people will complain about those kinds of costs but will happily destroy the XX1 groupset in 500k because they cheaped out on chain lube.....

What do you expect us to do? Lube our $100 chain like some sort of poor person?

35
Primoz
Posts
4674
Joined
8/1/2009
Location
SI
6/4/2025 12:46am

Regarding Sram's half-link chain, what are the pros and cons?

Pros:
-possibly (depending on overall shape) only one stamping tool vs. 2 separate tools of current chains (separate inner and outer links)
-no need for a narrow-wide chainring, all teeth can be same for full retention (triangular shape instead of rectangular)
-odd number of teeth
-'narrow-wide' retention performance even on the cassette, thus:
-shifting possible with full retention tooth shape (on the cassette)
-more uniform support on shifting ramps (every pin/roller part of the cahin can be used for shifting vs. outer links only of current situation)
-even finer length adjustment

Cons:
-no more quick-link?

Anything else? More wear was mentioned but I don't see how wear should be substantially different to more widespread, inner-outer link chains. Wear locations are the same.

3
6/4/2025 3:49am
Primoz wrote:
Regarding Sram's half-link chain, what are the pros and cons?Pros:-possibly (depending on overall shape) only one stamping tool vs. 2 separate tools of current chains (separate...

Regarding Sram's half-link chain, what are the pros and cons?

Pros:
-possibly (depending on overall shape) only one stamping tool vs. 2 separate tools of current chains (separate inner and outer links)
-no need for a narrow-wide chainring, all teeth can be same for full retention (triangular shape instead of rectangular)
-odd number of teeth
-'narrow-wide' retention performance even on the cassette, thus:
-shifting possible with full retention tooth shape (on the cassette)
-more uniform support on shifting ramps (every pin/roller part of the cahin can be used for shifting vs. outer links only of current situation)
-even finer length adjustment

Cons:
-no more quick-link?

Anything else? More wear was mentioned but I don't see how wear should be substantially different to more widespread, inner-outer link chains. Wear locations are the same.

Regarding wear, for some reason when using half link chains on my bmx bikes, it always seems like you end pulling your wheel further back fairly quickly... 

4
boozed
Posts
720
Joined
6/11/2019
Location
AU
6/4/2025 4:38am
Primoz wrote:
Regarding Sram's half-link chain, what are the pros and cons?Pros:-possibly (depending on overall shape) only one stamping tool vs. 2 separate tools of current chains (separate...

Regarding Sram's half-link chain, what are the pros and cons?

Pros:
-possibly (depending on overall shape) only one stamping tool vs. 2 separate tools of current chains (separate inner and outer links)
-no need for a narrow-wide chainring, all teeth can be same for full retention (triangular shape instead of rectangular)
-odd number of teeth
-'narrow-wide' retention performance even on the cassette, thus:
-shifting possible with full retention tooth shape (on the cassette)
-more uniform support on shifting ramps (every pin/roller part of the cahin can be used for shifting vs. outer links only of current situation)
-even finer length adjustment

Cons:
-no more quick-link?

Anything else? More wear was mentioned but I don't see how wear should be substantially different to more widespread, inner-outer link chains. Wear locations are the same.

Regarding wear, for some reason when using half link chains on my bmx bikes, it always seems like you end pulling your wheel further back fairly...

Regarding wear, for some reason when using half link chains on my bmx bikes, it always seems like you end pulling your wheel further back fairly quickly... 

As the bent side plates slightly straighten out, presumably?

If so, it also could cause excessive wear or binding of the rollers?

6
6/4/2025 5:04am
boozed wrote:

As the bent side plates slightly straighten out, presumably?

If so, it also could cause excessive wear or binding of the rollers?

That was my guess...

3
Jakub_G
Posts
379
Joined
8/7/2019
Location
SK
6/4/2025 6:32am
jonkranked wrote:

make it massive like bmx chains. 

Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the chains as part of manufacturing process could. Still wouldn't put one on my bike though.

3
dolface
Posts
1713
Joined
10/26/2015
Location
USA
6/4/2025 6:56am
jonkranked wrote:

make it massive like bmx chains. 

Jakub_G wrote:
Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the...

Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the chains as part of manufacturing process could. Still wouldn't put one on my bike though.

AFAIK chains don't actually stretch in any meaningful way, the rollers (and maybe the pins) wear allowing the rollers to sit off-center on the pins. The plates stay the same length.

(Or am I missing what you're gettting at?)

12
jonkranked
Posts
1207
Joined
5/5/2016
Location
Norristown, PA, USA
6/4/2025 7:45am
jonkranked wrote:

make it massive like bmx chains. 

Jakub_G wrote:
Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the...

Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the chains as part of manufacturing process could. Still wouldn't put one on my bike though.

that was the joke, all the ways the wear is mitigated would render it non-useable for mtb.  maybe not for a gearbox. 

1
jonkranked
Posts
1207
Joined
5/5/2016
Location
Norristown, PA, USA
6/4/2025 8:03am
jonkranked wrote:

make it massive like bmx chains. 

Jakub_G wrote:
Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the...

Not only that wouldnt work with narrow space between 12 speed cassettes but also wouldn't help with stretching issues. However I could see pre stretching the chains as part of manufacturing process could. Still wouldn't put one on my bike though.

dolface wrote:
AFAIK chains don't actually stretch in any meaningful way, the rollers (and maybe the pins) wear allowing the rollers to sit off-center on the pins. The...

AFAIK chains don't actually stretch in any meaningful way, the rollers (and maybe the pins) wear allowing the rollers to sit off-center on the pins. The plates stay the same length.

(Or am I missing what you're gettting at?)

that's been my understanding too, is that its the rollers that wear / deform over time. 

1
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