After obliterating 2 seatpost collars on my Gunnar....I thought to ask here. I looked online and found that the Gunnar uses a size 28.6. This is obviously too small. I thought it would work, but I stripped the bolt on the clamp trying to torque it down. I have to pry open the clamp to get it into place, and it seems that the bolt is too short to really get a bite before it strips. I would really like to get some ideas on what size to actually get. Would a 30.0 or 30.6 work?
Results 1 to 2 of 2