The Michelin 73810 Ultra Heavy Duty inner tube is designed for off-road motorcycles and powersports applications that demand dependable puncture and pinch-flat protection. Built with a reinforced construction and a 4 mm wall thickness, this 21-inch tube helps withstand the impacts, terrain changes, and operating conditions commonly encountered in motocross, trail riding, enduro, and other off-road use.
Featuring a TR-4 center metal valve, the Michelin 73810 provides secure inflation access and reliable valve durability when installed in a compatible 21-inch front motorcycle tire and wheel assembly. Its ultra heavy duty design makes it a practical replacement for riders seeking added tube strength over standard models. Verify tire, rim, valve, and application compatibility before installation, and install with proper lubrication and tire-fitting procedures to help prevent damage.
Manufactured by Michelin and identified by manufacturer part number 73810, this inner tube combines application-focused construction with the quality expected from a trusted tire and tube manufacturer. It is suited for replacement or service use on compatible off-road motorcycles requiring a 21-inch tube with a TR-4 center metal valve.
Features:
- Size: 21-inch motorcycle inner tube
- Model: Ultra Heavy Duty with TR-4 center metal valve
- Brand: Michelin
- Manufacturer part number: 73810
- Vendor part number: 73810
- Construction: Reinforced tube designed for off-road applications
- Wall thickness: 4 mm for enhanced durability
- Protection: Helps resist punctures and pinch flats
- Fitment: Compatible with select off-road motorcycles using a 21-inch tire and TR-4 center valve configuration