Interesting but the formatting is very poor on Chrome.
Chain! And sprockets.
Quite enjoyed this little page.
http://www.stumbleupon.com/su/77eYBJ/:P.Sp-flW:mTUPy4l@
Interesting but the formatting is very poor on Chrome.
I’m looking at it on an iPad, so I wouldn’t know...
Good one !!
I also like :
http://www.sheldonbrown.com/bicycleGears.html
B