Introducing the Sonic Bulk. A brand new 20 inch wheel fat bike, not only does this product look great, but all the contact points work in harmony producing a prefect geometry for a normal bike riding feel. Using motorbike technology the tyre itself is curved where only the top part of the thread actually contacts the road surface making the bike quick rolling, when corning you have the added benefit of the full tyre. The bike is built on a steel frame and fork-set specific to the design requirements of the wheels, with a single chain wheel to Shimano 6 speed twist shift drive for easy gear selection. Alloy A-Head stem and low rise MTB bars keep the handling smooth while Powerful V-style brakes produce the stopping power. The main feature is the wheel-set, 20 x 4 inch alloy rims run on widen hubs and those incredible moto inspired tyres. All finished in an co-ordinated vivid Green and Black colour option.