Originally Posted by h2o_polo_boi
I just bought a new one on eBay for $52. Anybody have any experience with the o-ring attachments? That is the only thing that worries me. The last thing I want is going over a bump and having my sensors falling off and being shredded in my spokes

Zip ties seem more secure and durable in the long run for me
Also, anybody know where to buy a complete kit without the computer for a second bike? I couldn't find one anywhere and ended up shelling out $40 for my 2nd bike.
http://www.sigmasport.com/us/produkt...s_komplettset/
Just curious though, how does the computer manage to distinguish different wheel sizes?
HAHA HA, I have been speaking to Sigma directly about this issue, The O ring solution is a bad one and they know it. They are working on a better mount as we speak but not sure what that means for us, A whole new sensor or an adapter of some sort. They are sending me some type of new o Rings that should help for now. I ended up using Gaffer Tape to secure mine in place.