Description
A quality inner tube is the foundation of reliable tire performance—cheap alternatives fail when you need them most. The Michelin 21″ TR-4 delivers the durability and air retention that serious riders demand, with overlap splice construction that resists blowouts and extends service life. Whether you’re running street, dirt, or dual-sport, this is the tube you can trust.
- Valve Type: TR-4 (threaded)
- Rim Diameter: 21 inches
- Tire Size Range: 2.50-21 to 3.00-21
- Compatible Sizes: 80/90-21, 90/90-21, 80/100-21, 90/100-21
- Material: Butyl rubber
- Splice Design: Overlap construction
- Splice Position: Opposite valve
- Weight: 1.20 lbs
- Applications: Front or rear
- MPN: 70151
