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Discussion Starter · #1 ·
I'm thinking of converting from the stock Shimano 3-ring crank set on my '08 Stumpy FSR Expert to an FSA 386 2-ring crank set. I'd still use the 9-cog rear with the SRAM X.0 drive train.
I live in hilly and rocky Helena, Montana, and can handle the climbing. I'm wondering if anyone else has made this conversion and, if so, how'd you like it? Also wondering what folks think about the benefits/drawbacks, and what folks think about the 40/27 vs. 42/27 chain rings.
Thoughts? Thanks!
 

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Just ride!
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324 Posts
I have installed the 386 Afterburner cranks on my 2009 Stumpy 29 FSR. The crank has 40/27 rings. The cranks are very stiff, lightweight, and shift very well. The bottom bracket bearings are crap. I would rate them an A-.
 

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Fat-tired Roadie
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18,453 Posts
Make sure you use the friction paste. My Kona stocked with FSA cranks and whoever installed them at the factory didn't use it. The crank arm fell off (actually a couple times.)
 
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