• 21 inch motorcycle inner tube

    All the 21 inch motorcycle inner tubes for the front wheel of your cross, enduro or trail. Compatible with 2.50-21 to 3.25-21 tyres and the metric sizes 70/100-21, 90/90-21, 100/70-21 and 100/80-21, with straight TR4 or reinforced TR6 valve.

The 21 inch motorcycle inner tubes fit the front wheel of almost every off-road motorcycle: motocross, enduro, trail and rally-raid. It is the reference front diameter in off-road.

This range covers the inch sizes 2.50-21, 2.75-21, 3.00-21 and 3.25-21, as well as their most sought-after metric equivalents: 70/100-21, 80/100-21, 90/70-21, 90/90-21, 100/70-21 and 100/80-21. To choose, simply read the size printed on your tyre's sidewall and find it among the products below.

Depending on use, two setups: the straight TR4 valve (Schrader) for standard use, and the reinforced TR6 version, with thicker rubber, for demanding riding: cross, enduro, hard enduro where the risks of pinch flats and overheating are higher.

All our 21 inch motorcycle inner tubes are made of butyl rubber for excellent airtightness and pressure that lasts longer. Looking for another diameter? Browse our full range of motorcycle inner tubes.

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