Sign in to follow this  
Followers 0
Matt24.

Crank compatibility for Hex

8 posts in this topic

Hey - looking to purchase some 170 cranks for the hex. Currently has descendants on it however doesn’t look like I can get gxp versions of them anymore. Have been looking at 170mm saints and wanted to find out if I need 68-73 or 83 to fit with chain stays running a 4 bolt inspired bash and 22tooth chain ring. Ta

Share this post


Link to post
Share on other sites

You should have no problem with 170s. I'm running 175 Shimano XT cranks on my 2020 with no problems. It's a 68mm shell.

Share this post


Link to post
Share on other sites

Posted (edited)

A 68/73 and classic 4 bolt ring will be be tight. I couldn't run a (3 ring style) Deore on mine, the ring hit the chain stay. 2 ring version of the Deore does just fit, but can't mount a bash on the outside. Switched to 83 mm Race Face cranks (well, "superboost" actually), which are fine.

Chain line is another thing to consider with this setup. On my industry nine rear hub, I have to run the cog all the way inboard for a straight chain, so if the crank were any closer to the chain stays, my chain line would be less than ideal. A Hope hub has a bit more space.

For old school Saints which have the classic 3 ring spacing, go 83.

Edited by Daan

Share this post


Link to post
Share on other sites
3 hours ago, Swoofty said:

You should have no problem with 170s. I'm running 175 Shimano XT cranks on my 2020 with no problems. It's a 68mm shell.

What are you running for a bash or not?

Share this post


Link to post
Share on other sites

It's worth bearing in mind which Hex everyone's talking about too. The older generations used to be pretty tight on clearance whereas the more recent ones (since they switched to tapered head tubes) have been better. That kind of double spider setup will get you less clearance than the new school integrated mount style setups, but as before it should be more workable than it was on the older frames.

Share this post


Link to post
Share on other sites

2019 Hex here, the newer generation. A friend of mine with the same Hex made his triple 68/73 RF cranks work with some mods (spacing all the way to the drive side, cutting down the 22t ring tabs a bit); unmodified the ring hits the chain stay, as with my Deore, and likely also with the old Saints (they're all the same spec, old school triples, same chain line). I think Swoofty runs the newer XT double crank, which does fit, but you need to be creative with the bash ring. So for Saints, go 83 mm :)

1 person likes this

Share this post


Link to post
Share on other sites

Cheers all super helpful. It’s a 2019 so going so at least I know where I stand now. I guess choice is either wait until some sram stuff comes available or dive in eithe saints and get creative! 

Share this post


Link to post
Share on other sites

I've got the XT double ring M8200 (i think) with just a cut piece of aluminum for a bash. I've had to file some teeth on a 22t ring before too.

hex crank.jpg

1 person likes this

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Recently Browsing   0 members

    No registered users viewing this page.