Originally Posted by chimblysweep
question on this-- my friend just offered a free sora double crankset. can i just pull the second chainring off and use it?
Yes. You'll just need shorter chainring bolts (BMX ones will work - $5) or spacers for the existing bolts.
Cool, cranks are usually one of the more expensive items for your build. Now, make sure you do something nice for your friend!