Patent ID: 7100930
Filing Date: 2006-09-05
Classification: B62K

Abstract:
1. In a bicycle rear wheel suspension comprising: a) a main frame, b) a shock absorbing means, c) a swingarm that moves relative to the main frame, d) a bicycle rear wheel attached to said swingarm, e) a crank assembly attached to said swingarm, f) and a linkage means for connecting said swingarm to said frame, g) said swingarm has an instant center of rotation that moves as the swingarm moves from the uncompressed to fully compressed state, the instant center of rotation is horizontally located forward of the crank assembly center when the swingarm is uncompressed and moves significantly rearward as the suspension is compressed, h) thus reducing in the vertical movement of said crank assembly as the swingarm is moved from the uncompressed to compressed position.