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
Specialized Bicycle Components since 1896. This follows on from Specialized's trademarking of the word in Canada. The situation and behavior towards the shop owner caused some reactions from cyclists worldwide in the days after a story on the matter was published by the Calgary Herald in early December 2013. On 9 December Fuji Bikes owner, Advanced Sports International of Philadelphia said that in fact, they are the legal owner of worldwide rights to the Roubaix trademark. Fuji has had a "Fuji Roubaix" road bike model in its lineup since 1992, and has licensed the name to Specialized since 2003. The dispute between Specialized,