1、Rubber Material: Made of high quality rubber material, the internal structure is stable, and has strong flexibility, which can fully meet the international standard airpressure. 2、Longer Service Life: Motorcycle rubber inner tube has higher safety performance and longer service life than ordinary inner tubes, more durable. 3、Shock Absorption: The 2.50‑17 inner tube can absorb the shock of bumpyroads to adds comfort to your riding and guarantee your safety. 4、Applicable Models: The 2.50‑17 inner tube has a straight valve stem and is perfectly suitable for 110 cc, 125 cc, 140 cc motorcycles series. 5、Replaceable Inner Tube: No need to buy a new tire when you have a flat, simply replace the damaged inner tube and you'll be back up and running. Item Type: 2.50-17 Inner Tube Material: Rubber Color: As Pictures Shown Weight: Approx. 388g/13.7oz Valve: Straight Valve Stem 1 x 2.50-17 Inner Tube