Thread: learning to pedal circles without thinking about it....
View Single Post
Old 06-17-11 | 01:45 PM
  #22  
Garfield Cat's Avatar
Garfield Cat
Senior Member
20 Anniversary
 
Joined: Oct 2004
Posts: 7,124
Likes: 111
From: Huntington Beach, CA

Bikes: Cervelo Prodigy

Originally Posted by bruce19
How is this different from Shimano's Biopace crankset from years ago?

http://en.wikipedia.org/wiki/Biopace
Both Biopace and O Symetrics are fixed systems. Rotor is a "variable gear" chain ring.

http://www.rotorbikeusa.com/images/s...valladolid.pdf
Garfield Cat is offline  
Reply
0