WHAT DOES ENGINE BIKE EXHAUST MEAN?

Tire: as in popular usage. Commonly pneumatic. A tubular tire is glued on the wheel rim; most tires use tubes, but tubeless tires and rims are more and more widespreadHub: the middle part of a wheel that contains bearings which is in which the spokes connect then join outward towards the rim.V4 Engines: Combining the compactness of V configuratio