Dang straight it is.You'll get all kind of responses out of this one.This past week I have been trail riding on my full squish, a gravel road ride on my steel HT, and gone urban/dirt jumping on my SS.I think if your on a 24 or 26in off road bike then your doing the MTB thing fer sure.Feltup will give you a different view but that's what makes this forum fun.
