Specialized Stumpjumper 2019 ST to LT conversion

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Author	Message

maxwellseeley

Posted: Aug 3, 2020 at 19:41

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Hi,

I need to upgrade my front shock and considering converting my Stumpjumper ST to LT.

Current setup:
Front fork: Rockshox 35 Gold RL 130mm travel with 44mm offset
Rear Shock: Rockshox Deluxe RT3 130mm travel

Proposed setup:
Front Fork: Rockshox Pike Ultimate 150mm travel
Rear shock: Öhlins TTX22M, coil spring, 48x197mm (135mm travel - this was pulled off another bike I have)
Changing yoke to Stumpjumper P/N S186300001

Why - I don't like my current fork. I want to upgrade it and want to buy something that will have a staying power. Right now a short travel fits my skill level and local riding areas well. I hope to progress and want something I could ride out West (maybe that is delusional on this bike....comments welcome).

Not sure what direction to go - I could buy a new fork that has a 130mm of travel, stick with my current rear shock, sell my TTX22m, and preserve my bike's intended geometry. This would be well suited for my current skillset and the majority of riding that I do.

I could do the conversion and have a bike that might have a longer life for me. Also, if I am investing in a high-end shock, I could pull it off this bike at some point for a new build.

Please advise.

stumpsforjumps

Posted: Aug 5, 2020 at 14:26

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150 / 135 wouldn't be bad. The OE spec is 150/140 so you'd be real close.

The Ohlins Coil is excellent. Been my favorite rear shock I've every ridden.

The SJ is not going to be undergunned in the west. I rode mine frequently in bike parks & back country pedals. It's a jack of all trades sort of bike. It's not going to go down as well as a purpose built Enduro bike, nor up as fast as a purpose built XC bike. But that's sorta the point. It's a do it all.

Bcollings518

Posted: Aug 16, 2020 at 15:50

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I am looking to doing something similar.

Current setup:
Stock 2020 Stumpy ST comp alloy 29

Proposed setup:
Fox 36 160mm
X2 or DHx2 either 52.5 or 50 with CascadeComponents linkage to make rear travel 145 or 160.
And of course, the new yoke to match the 210 eye-to-eye these shocks have.

Goal:
Have an ST when I want it and eventually the parts to build out an EVO from the frame up.

My question is how do I get my hands on the shorter yoke?

Thanks for the help!

stumpsforjumps

Posted: Aug 19, 2020 at 6:32

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Bcollings518 wrote:

Are you looking for the standard yoke for a "regular" Stumpy?

Or an extra short one that comes stock on the ST?

Lucas420

Posted: Nov 28, 2020 at 17:28	Quote
Hey guys I would like to do the same on my stumpy 130/120 2020 and put a Lyrik 160 as the fork and a marrzoci back to have a travel of 140 mm. do I have anything else to change I thought to install a cascade linkge.

rsithin

Posted: Dec 12, 2020 at 17:52

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Lucas420 wrote:

Hey guys I would like to do the same on my stumpy 130/120 2020 and put a Lyrik 160 as the fork and a marrzoci back to have a travel of 140 mm. do I have anything else to change I thought to install a cascade linkge.

I recently converted my ST Stumpjumper to 150 front/145ish rear with with stock stumpy components. To my understanding, the 140 rear requires the shorter yoke, which I purchased online. I also have the Cascade Component Link, which is why I say 145ish. The link works with either yoke, but the shock travel determines which yoke you use. In the front, I removed the all travel spacer in the fork to make it 150mm.

belgianinvegas

Posted: Apr 29, 2021 at 14:36	Quote
Hi everyone, i'm a specialized dealer and you can order the shorter yuk from your local specialized dealer with part # S186300001 They currently have plenty in stock. Long travel rear shock will have to be 210 x 50 mm and you probably need to order a different top of the shock hardware. Cheers.

bcusitsjeff

Posted: May 2, 2021 at 22:41	Quote
Does anyone know if this would work with a 2021 Stumpjumper Alloy? I know the carbon frame changed, Im just not too sure if the allow frame changed as well. Thank you

BruisingElk

Posted: Jul 17, 2021 at 12:17	Quote
Do you need the Cascade components link? Or can you fit a 210 shock on the st stumpy just by getting the shorter yoke and have it not cause any problems?

sekorak

Posted: Aug 13, 2021 at 23:04

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BruisingElk wrote:

Do you need the Cascade components link? Or can you fit a 210 shock on the st stumpy just by getting the shorter yoke and have it not cause any problems?

You dont need the cascade link.
You just need the shorter yoke.

unclerickmtb

Posted: Sep 17, 2021 at 8:30

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sekorak wrote:

BruisingElk wrote:

Do you need the Cascade components link? Or can you fit a 210 shock on the st stumpy just by getting the shorter yoke and have it not cause any problems?

You dont need the cascade link.
You just need the shorter yoke.

I’ve got the link you need to convert a ST to a LT.
If anyone is interested, Inbox me.

getinsideways415

Posted: Nov 22, 2021 at 18:47

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stumpsforjumps wrote:

Bcollings518 wrote:

Are you looking for the standard yoke for a "regular" Stumpy?

Or an extra short one that comes stock on the ST?

Do you by chance happen to have that cascade on your bike yet? What kind of travel do you get out of it i2i?

getinsideways415

Posted: Nov 22, 2021 at 18:51

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belgianinvegas wrote:

Hi everyone, i'm a specialized dealer and you can order the shorter yuk from your local specialized dealer with part # S186300001
They currently have plenty in stock. Long travel rear shock will have to be 210 x 50 mm and you probably need to order a different top of the shock hardware. Cheers.

Thank you for posting!
Do you know by chance what i2i this specialized part makes or what length can you put? I’m trying to get to 205mm

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