Apex rear der with Rival group?

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Permalink Reply by Justin Bristol on April 21, 2011 at 9:24am

As far as I'm aware, all of the SRAM road groups are compatible. I believe the road shifters also work with the 10 speed MTB stuff, so that may be another option.

 

As far as durability, stick with the power glide cassettes, not the open ones with the "missing" teeth. From what I understand the open cassettes offer more opportunity for mud to get into the gaps between teeth. I've never had an issue with chains or clogging on my SRAM stuff racing, or riding out on the local mountain bike trails.

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Permalink Reply by Tire Snob on April 21, 2011 at 3:59pm

This stuff is all compatible for 10 speed. For 9 speed mountain bike components, the derailleurs were not compatible with 10 speed road shifters.

 

You should be able to run an Apex rear derailleur fine with Rival shifters, and a Wi Fli 11-32 rear cassette for some low gearing. An 11-34 from SRAM/Shimano may work as well.

 

Regarding mud, I think there is a big difference between 8 and 10 speeds...but not so much between one gear. What matters more is the shifter, I think. SRAM's one lever makes for interesting shift results when it's super muddy because if it doesn't get there or skips, you don't have an opposing lever to play with and there's more opportunity to go the wrong way if that makes sense.

 

 

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Permalink Reply by ken feist on April 21, 2011 at 2:09pm

I have been doing mtb races on a cyclocross bike for years in NZ and have never had a problem with mud clogging up cassettes, that is running SRAM force 10spd, the only problem I have had is breaking right hand shifters, (breaking the teeth off the internals and not being able to shift). Try a 11-28 cassette, (you can still run a short cage derail) and a compact crankset with a 34t inner ring. You should be able to ride almost any mtb trail with this gear.

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Permalink Reply by Matt Haughey on April 21, 2011 at 6:24pm

I have a cross bike with a mostly Force group (Rival crankset since that's the only one they make in 180mm), and I replaced the rear Force with an Apex this year, so I could toss a 32t cog on my all around wheels for climbing steep gravel roads in the off season.

The shifters work great, I can barely tell the difference in shift responsiveness between the Force and Apex. About the only thing I noticed is when taking the rear wheel off and on, the mid-cage length is noticeable and the chain seems to have more slack when removing a wheel.

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Permalink Reply by Leon Droby on April 28, 2011 at 6:15am

I'm running an Apex rear der with Red shifters and it works fine.

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