MTB Tech Rumors and Innovation

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gibbon
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wales, GB
10/22/2024 8:37am
bikelurker wrote:
A couple of days ago I Heard the crazyest thing, that shimano is about to drop a 1x ROAD groupset. Hey, maybe they are caling GRX...

A couple of days ago I Heard the crazyest thing, that shimano is about to drop a 1x ROAD groupset. Hey, maybe they are caling GRX a road groupset (it is) maybe they have something else...

They will launch Di2 GRX 1x ,XTR and Xt together because they all share the same architecture.

9
dolface
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10/22/2024 9:56am
New Bike from Transition or just new colours? 

1000040149 1.png?VersionId=DuuFaMVSIAzkL00G2 GNew Bike from Transition or just new colours? 

New Sentinel tomorrow, not sure how much is changing, but in-frame storage will be there. There may also be another model, potentially the Scout? 

I'd bet on a steeper HT, more progression and (hopefully) a bit more stack.

3
noodlenosteeze
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10/22/2024 11:19am
thomas1965 wrote:
taking all recent discussion into account, I'm thinking this with an ochain will be my next ride.

taking all recent discussion into account, I'm thinking this with an ochain will be my next ride.

22305280
mtbboy1993 wrote:

Is this a joke?  I don't get the point of this.

No it's 100% serious. Gotta eliminate that pedal kick even from the tires. 

3
MauiMax
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10/22/2024 11:22am
thomas1965 wrote:
taking all recent discussion into account, I'm thinking this with an ochain will be my next ride.

taking all recent discussion into account, I'm thinking this with an ochain will be my next ride.

22305280
mtbboy1993 wrote:

Is this a joke?  I don't get the point of this.

No it's 100% serious. Gotta eliminate that pedal kick even from the tires. 

A bluetooth chain and crank would solve all pedal kickback

6
10/22/2024 11:29am

from the blurred pictures, the new shimano stuff does not appear to be wired, I am surprised

1
TEAMROBOT
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10/22/2024 11:57am
dolface wrote:
 FC-7800C

 

FC-7800C

Dura-Ace Carbon Crankset

Great trivia. Never heard of this super limited production product. Wild. Here's an article from 2008 about the crank for anyone else who's curious. Interestingly it still had an aluminum core with a carbon outer wrap: https://www.cyclingweekly.com/news/product-news/shimano-carbon-crankset-update-94640

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Eae903
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10/22/2024 12:32pm

Looking forward to quoting this post when it drops.

TimBud wrote:
I've been wrong before and won't lose sleep over it.But if that's how you get your boners then you enjoy it. Shimano are more stubborn than I...

I've been wrong before and won't lose sleep over it.

But if that's how you get your boners then you enjoy it.

 

Shimano are more stubborn than I am and we'd have seen a production carbon crank (not an LE from 10 years ago) on their road groupsets already if there was one coming to mtb. And it being KTM suggests its just errors on their spec sheets which is super common across all brands.

For example a year or so ago Specialized had to give away a load of 700watt batteries with Levo sales because they were delivered with 500 when the spec stated 700 (in the UK).

Honestly, Cranks are the last place I think I need Carbon on my bike. Frame, Bars, and wheels is where carbon is good for the average rider. Let them keep doing the aluminum hollowtec II cranks, they're my favorite in the market anyways. 

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MauiMax
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10/22/2024 12:44pm

Looking forward to quoting this post when it drops.

TimBud wrote:
I've been wrong before and won't lose sleep over it.But if that's how you get your boners then you enjoy it. Shimano are more stubborn than I...

I've been wrong before and won't lose sleep over it.

But if that's how you get your boners then you enjoy it.

 

Shimano are more stubborn than I am and we'd have seen a production carbon crank (not an LE from 10 years ago) on their road groupsets already if there was one coming to mtb. And it being KTM suggests its just errors on their spec sheets which is super common across all brands.

For example a year or so ago Specialized had to give away a load of 700watt batteries with Levo sales because they were delivered with 500 when the spec stated 700 (in the UK).

Eae903 wrote:
Honestly, Cranks are the last place I think I need Carbon on my bike. Frame, Bars, and wheels is where carbon is good for the average...

Honestly, Cranks are the last place I think I need Carbon on my bike. Frame, Bars, and wheels is where carbon is good for the average rider. Let them keep doing the aluminum hollowtec II cranks, they're my favorite in the market anyways. 

Carbon cranks and carbon bars both seem a bit sketchy to me. Ive seen quite a few snapped and it looks like it could hurt if your in a bad spot when it does snap. 

12
Jotegr
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10/22/2024 1:11pm

That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran e13's 9t stuff for a while and on most bikes it worked well, some bike shapes didn't play nice with the 9t for the most part it worked out well.

Shimano had that XTR 10-45t cassette but as far as I could tell it was vapourware; I've never managed to see one in real life. But 9-45t allegedly coming on a bike? XTR LINKGLIDE being 11 speed? This is crazy. it's like they listened to enthusiasts instead of the MORE GEARS BIGGER CASSETTES MORE BETTER crowd. 

16
10/22/2024 2:21pm
Jotegr wrote:
That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran...

That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran e13's 9t stuff for a while and on most bikes it worked well, some bike shapes didn't play nice with the 9t for the most part it worked out well.

Shimano had that XTR 10-45t cassette but as far as I could tell it was vapourware; I've never managed to see one in real life. But 9-45t allegedly coming on a bike? XTR LINKGLIDE being 11 speed? This is crazy. it's like they listened to enthusiasts instead of the MORE GEARS BIGGER CASSETTES MORE BETTER crowd. 

That 10-45 12speed XTR cassette is definetly not vapourware. Ran one for 2-3 season and currently running a SLX 10-45 12sp cassette (there is also a XT 10-45 version) with the same XTR GS 12 speed derailleur. They are also the cassette used currently for the 12 speed GRX gravel group so plenty of stock available. But there is no SLX GS derailleur, only XT or XTR version. My next build will be XT GS derailleur and 10-45 SLX cassette with XTR chain.

The vapourware stuff was the 10-45 11 speed hyperglide+ cassette that was mentionned during XTR launch but was never actually available.

19
David9180
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10/23/2024 2:46am Edited Date/Time 10/23/2024 2:47am
Jotegr wrote:
That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran...

That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran e13's 9t stuff for a while and on most bikes it worked well, some bike shapes didn't play nice with the 9t for the most part it worked out well.

Shimano had that XTR 10-45t cassette but as far as I could tell it was vapourware; I've never managed to see one in real life. But 9-45t allegedly coming on a bike? XTR LINKGLIDE being 11 speed? This is crazy. it's like they listened to enthusiasts instead of the MORE GEARS BIGGER CASSETTES MORE BETTER crowd. 

1llumA wrote:
That 10-45 12speed XTR cassette is definetly not vapourware. Ran one for 2-3 season and currently running a SLX 10-45 12sp cassette (there is also a...

That 10-45 12speed XTR cassette is definetly not vapourware. Ran one for 2-3 season and currently running a SLX 10-45 12sp cassette (there is also a XT 10-45 version) with the same XTR GS 12 speed derailleur. They are also the cassette used currently for the 12 speed GRX gravel group so plenty of stock available. But there is no SLX GS derailleur, only XT or XTR version. My next build will be XT GS derailleur and 10-45 SLX cassette with XTR chain.

The vapourware stuff was the 10-45 11 speed hyperglide+ cassette that was mentionned during XTR launch but was never actually available.

I´m running the XT GS derailleur and Sram 11s 10-42 XG117 75 cassete, worques great!

Would be nice to have a wirless 11s deralleur option.

2
10/23/2024 4:59am
Jotegr wrote:
That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran...

That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran e13's 9t stuff for a while and on most bikes it worked well, some bike shapes didn't play nice with the 9t for the most part it worked out well.

Shimano had that XTR 10-45t cassette but as far as I could tell it was vapourware; I've never managed to see one in real life. But 9-45t allegedly coming on a bike? XTR LINKGLIDE being 11 speed? This is crazy. it's like they listened to enthusiasts instead of the MORE GEARS BIGGER CASSETTES MORE BETTER crowd. 

1llumA wrote:
That 10-45 12speed XTR cassette is definetly not vapourware. Ran one for 2-3 season and currently running a SLX 10-45 12sp cassette (there is also a...

That 10-45 12speed XTR cassette is definetly not vapourware. Ran one for 2-3 season and currently running a SLX 10-45 12sp cassette (there is also a XT 10-45 version) with the same XTR GS 12 speed derailleur. They are also the cassette used currently for the 12 speed GRX gravel group so plenty of stock available. But there is no SLX GS derailleur, only XT or XTR version. My next build will be XT GS derailleur and 10-45 SLX cassette with XTR chain.

The vapourware stuff was the 10-45 11 speed hyperglide+ cassette that was mentionned during XTR launch but was never actually available.

David9180 wrote:

I´m running the XT GS derailleur and Sram 11s 10-42 XG117 75 cassete, worques great!

Would be nice to have a wirless 11s deralleur option.

What shifter are you running?

jsray
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10/23/2024 6:48am

New sentinel is on transition website. Even though IG post said 8am PST

2
Nobble
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10/23/2024 6:50am

New Sentinel is up.


https://www.transitionbikes.com/Bikes_Sentinel.cfm


Looks pretty much like exactly what I was hoping for. Now to decide if I want to open up my wallet.

8
gibbon
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wales, GB
10/23/2024 7:10am
Marcus J wrote:

What shifter are you running?

I run exactly the same set up. I use a xt shifter.

2
10/23/2024 7:22am

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

1
dolface
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10/23/2024 7:22am Edited Date/Time 10/23/2024 8:57am
Nobble wrote:

New Sentinel is up.


https://www.transitionbikes.com/Bikes_Sentinel.cfm


Looks pretty much like exactly what I was hoping for. Now to decide if I want to open up my wallet.

Same. Might need to swap out my Smuggler for one of these!

ANd I really hope they did something different than the "window" to route hoses into the rear triangle...

gibbon
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wales, GB
10/23/2024 7:25am
Nobble wrote:

New Sentinel is up.


https://www.transitionbikes.com/Bikes_Sentinel.cfm


Looks pretty much like exactly what I was hoping for. Now to decide if I want to open up my wallet.

And empty it.............

3
1
10/23/2024 7:27am
Nobble wrote:

New Sentinel is up.


https://www.transitionbikes.com/Bikes_Sentinel.cfm


Looks pretty much like exactly what I was hoping for. Now to decide if I want to open up my wallet.

Pretty sweet looking bike. If I didn't already open up my wallet for a Megatower this would be in the running. Stays are a bit on the long side, but I'm loving everything else. 

gibbon
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wales, GB
10/23/2024 8:13am Edited Date/Time 10/23/2024 8:14am

You have got to admire Si's dedication to sticking to his principals, steel and uk manufacturer.

9
Suns_PSD
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Austin, TX, USA
10/23/2024 8:52am
Jotegr wrote:
That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran...

That 9-45t cassette from shimano is neat. I've wanted a tighter 12 speed option for a while other than stuff like e13 and garbaruk. I ran e13's 9t stuff for a while and on most bikes it worked well, some bike shapes didn't play nice with the 9t for the most part it worked out well.

Shimano had that XTR 10-45t cassette but as far as I could tell it was vapourware; I've never managed to see one in real life. But 9-45t allegedly coming on a bike? XTR LINKGLIDE being 11 speed? This is crazy. it's like they listened to enthusiasts instead of the MORE GEARS BIGGER CASSETTES MORE BETTER crowd. 

The 10-45 12 speed is commonly available.

However, the 10-45 11 speed that was announced, and even listed incoming on websites, never made mass production.

That said, I bought one from a bike shop that had 3 of them and it's on my Smuggler as we speak, and it's perfect gearing and shifting with an absolutely awesome weight. I mean, the entire set up is .5# lighter than a Transmission right off the rear wheel.

Does creak like a mofo however like all XTR Shimano multipiece cassettes unless you disassemble and grease between the gears, which I don't.

The 11 speed is really just the 10-51 12 speed, with the 1st gear removed.

6
Suns_PSD
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10/23/2024 8:55am
segamethod wrote:

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

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.

14
seanfisseli
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Santa Cruz, CA, USA
10/23/2024 9:27am
As soon as you lock up all bets are off course. To be honest I’ve never really ridden anything where I found pedal kickback to be...

As soon as you lock up all bets are off course. To be honest I’ve never really ridden anything where I found pedal kickback to be annoying beyond when the wheel is locked up. Even going back to back with and without chain. There’s a part of me that actually kind of likes being able to use chain tension to keep it a little higher. Let the cranks rotate backwards a little on landing and the impact is lessened using more travel. Keep feet entirely flat and push through it for more efficiency. 

Had this realization at northstar on closing day. Finally realized that on some drops my ankles were getting blasted by PK and that I needed to let my feet rotate on impact.


I don’t view this as a positive, though. Trying to absorb impacts while rotating my feet backwards is not enjoyable or efficient or very effective. If riders have adapted to this behavior that’s fine for them but I would much rather be on a bike that is designed to avoid that phenomenon.


My biggest issue is that this has to be putting more weight in our hands/force into our upper body. I want to ride through my feet not my hands, ESPECIALLY in rough sections and in moments of impact. I’m stoked for the innovation happening around PK because it’s going to unlock a style of riding that a lot of us didn’t even know we needed

4
BrambleLee
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Portland, OR, USA
10/23/2024 9:36am

Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. 

I wish SRAM hadn’t done it to begin with, but now that the toothpaste is out of the tube, everyone else kind of needs to do it too, no?

3
10/23/2024 10:29am
BrambleLee wrote:
Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. I wish SRAM hadn’t...

Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. 

I wish SRAM hadn’t done it to begin with, but now that the toothpaste is out of the tube, everyone else kind of needs to do it too, no?

I really hope that's not the case. The angles created are just not ideal in any way. Why would Shimano need to do it?

3
Eae903
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10/23/2024 11:14am
BrambleLee wrote:
Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. I wish SRAM hadn’t...

Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. 

I wish SRAM hadn’t done it to begin with, but now that the toothpaste is out of the tube, everyone else kind of needs to do it too, no?

I really hope that's not the case. The angles created are just not ideal in any way. Why would Shimano need to do it?

Chainring clearance on the frame right? Frame manufacturers are wanting to make stays wider at the frame or main pivot, so the Chainring has to move out. 

4
BrambleLee
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Portland, OR, USA
10/23/2024 12:19pm
BrambleLee wrote:
Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. I wish SRAM hadn’t...

Re: upcoming Shimano updates—I’ll be very curious to see whether they follow SRAM’s lead on pushing the cassette outboard for a 55mm chainline. 

I wish SRAM hadn’t done it to begin with, but now that the toothpaste is out of the tube, everyone else kind of needs to do it too, no?

I really hope that's not the case. The angles created are just not ideal in any way. Why would Shimano need to do it?

Eae903 wrote:
Chainring clearance on the frame right? Frame manufacturers are wanting to make stays wider at the frame or main pivot, so the Chainring has to move...

Chainring clearance on the frame right? Frame manufacturers are wanting to make stays wider at the frame or main pivot, so the Chainring has to move out. 

Pretty much all the frame manufacturers moved to a 55mm chainline ahead of transmission’s release. SRAM pushed their cassette outboard, so it pretty much all comes out in the wash. But it fucked things for older components. 

Newer frames, for the most part, are requiring a crankset based around the 55 chainline, so now if the cassette isn’t pushed outboard on the new shimano groupsets, chainline will be awful. 

2
1
overbiked
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10/23/2024 1:50pm
IMG 1660.jpeg?VersionId=bMk5KFKTZih7lB.21.I8ngE

Saw this EXT Vaia at Sundance loam pass event on an Ari, talked to the ext guys for a bit about it. He said it’s internally adjustable from 170-200, meant for heavy enduro and dh. He said they’ll start selling hopefully in November for around 2k USD

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