Single-speed bicycle on the situation, a messenger may prefer a mountain bike based single-speed, which can roll over many obstacles, or a fast and light road bike-based single-speed. In the United States market, bicycle companies such as Bianchi, Cannondale, Fuji Bike, KHS, Kona, Raleigh, Giant, Specialized, Swobo, Felt, Trek and Niner all have produced and marketed single speed bicycles. Because most full suspension frame designs either have a single pivot that is not concentric with the bottom bracket, or a linkage with a variable center of rotation, the distance between the bottom bracket and rear axle varies throughout the suspension's travel. This
Kawasaki (bicycle brand) Kawasaki (bicycle brand) Kawasaki is a brand of bicycle produced by various manufacturers from time to time since the 1970s. The bicycle types have included BMX, mountain, fatbikes, and e-bikes. Manufacturers have included Huffy, CGF Factory, and Diavelo. Promotion of the Kawasaki BMX brand included sponsoring BMX racing. Kawasaki BMX bicycles were welded by Triple-A Accessories in southern California in the 1970s. Frames were made from steel and aluminum with TIG and MIG welders. The frames had a rear suspension consisting of a swingarm supported by a spring on each side. The front fork was attached to the frame by