competed in my first sprint event back in september, I noticed some of the faster looking bikes in the transition area had rear discs. Upon this observation I thought they looked quite cool, and decided to see how much they were!!!! wow!! so expensive!!!
Can anyone tell me the real benefit you get from a disc??? (my bike already has two wheels so is this a wise investment??)(thinking cost per extra second gained!)
I also noticed you can get different wheel types for different cycle courses, ie. straight and flat or hilly and wyndy. is there a general rule of thumb for certain wheels for certain terrains.
cheers, quite a technical one this, thanks again!