Hi I'm Ben. I'm 22 and used to ride a few years ago now Im just getting back into it. I've got a Onza T-Bird which a friend gave me to build and it is now finished. I live in Bristol and I'm a big rock climber who is now converting very quickly to riding again. Just a quick question what gear ratio are people using on 20" bikes? I'm currently running 24/16 so 3-2 if i"m correct. Cheers Ben.