Despite appearances, slick tires perform best on hard surfaces. The lateral distance between the pedal attachment points on a crankset. For most cyclists, the narrower the tread the better. Some theorists blame this for knee and hip problems experienced by some cyclists, but the jury is still out on this. A trials bike is a one speed, geared very low , with a tiny chainwheel both for low gearing and improved clearance.
Frames are small, equipped with a very low saddle.
Trials riders never actually sit on the saddle, but a saddle is required as a safety measure. The major technique involves locking the wheels up with the brakes, and bouncing the bike up and donwn in the manner of a pogo stick. Triathlon, Triathlete A three-part race, usually consisting of a swim, a cycling stage, and a run. The cycling section of a triathlon is run as if it were a time trial . Drafting is forbidden, so there can be no team tactics or other assistance between contestants.