# 11 to 16, it's a liitle bit "basic" (sorry for the word but my english is not perfect). I want to say that this fitting is something sophisticaded and the drawing is too simple.
Look at the bike I fit :
http://www.racycles.com/product.aspx?catid=3,449,706&pid=3794http://www.racycles.com/product.aspx?catid=3,453,726&pid=4100