Multi-Compatibility--This 18x1.75/2.125 inner tube is suitable for most mountain bikes, road bikes, urban commuter bikes, off-road bikes and other models. Whether you are a road rider who pursues speed or a mountain biker who loves adventure, this bicycle inner tube can be your best partner.

Reliable And --Made of high-quality rubber material, production process control and careful material selection the heat resistance, aging resistance and elasticity of the inner tube, which can withstand various pressures and frictions in daily riding, ensuring the safety and comfort of riding.
Good Air Tightness--The inner tube has excellent air tightness and is compatible with a variety of wheel sets. Whether it is the slender rims of road bikes or the sturdy hubs of mountain bikes, it can be easily adapted to good sealing under various road conditions, providing stable and reliable protection for your cycling journey.
Color: Black
Material: Rubber

Package Contents:
2PCS 18x1.75/2.125 Bike Tubes