Kent Kz2600 Twin Suspension Mountain Bike Review He is credited with designing and building some of the first mountain bikes. His first, Breezer #1, is housed at the Smithsonian's National Museum of American History. The brand has evolved over time and caters to many sides of riding. They’re meant to go as fast as they'll in the shortest amount of time potential. The bike is obtainable with professional tools to assemble your bike simply and quickly. Standard rims for freestyle bikes are 32 mm, but if you’re notably exhausting on bikes, you may go for something a little bigger. Wheel sizes will stay consistent regardless of the rider’s dimension, but the size of the body alters to fit.