LITTLE KNOWN FACTS ABOUT BICYCLE HELMET.

Broader wheels and tires are faster aerodynamically, and a lot more at ease to boot. S5 arrives specced with 28mm tires but has clearance for around a 34mm (measured) tire.The prolonged seat tube cut out - developed throughout the P range - delivers further aerodynamics. The bikes can be obtained to be a frame only.We have simplified the whole proc