12 x 2.50 - 3.00 Inner Tube - For Mini Moto Pit Bike 12inch Wheel TR4 Car Valve

TR4 Valve (Heavy Duty Car Type Valve). (Found mainly on Smaller Pit Bikes / Mini Moto Bikes). HIGH QUALITY INNER TUBE. after being placed within the suitable wheel and tyre. Any tube inflated outside the tyre will only withhold a small fraction of the normal pressure.

eBay