Joined: Nov 2010
Posts: 15,315
Likes: 903
From: Tixkokob, Yucatán, México
Bikes: 79 Trek 930, 80 Trek 414, 84 Schwinn Letour Luxe (coupled), 92 Schwinn Paramount PDG 5
In answer to your question, they are all basically the same. I've used Cateye for years because they are readily available. The wired ones have exceptional battery life, compared to wireless. I've also used Sigma. Personally, I'd stay away from Bell.