Product Description Specifications:Application:Cross CountryProduct Line:RacingGround Conditions:mixedType:folding tyreTubeless System:Tubeless ReadyTechnical Information:Rubber Compound:Gum-XCarcass:150 tpi, 2 layers (4 layers towards the bead)Puncture Protection:Cross Shield 2Models:29x2.1 Dimensions:29 x 2.1"ETRTO:54-622Air Pressure:1.8 - 4 barTube Recommendation:A4Manufacturer Number:489593 29x2.25 Dimensions:29 x 2.25"ETRTO:57-622Air Pressure:1.8 - 4 barTube Recommendation:A4Manufacturer Number:819814Technology:Racing The series for professional competitions. Gum-X The Gum-X rubber compound offers the best compromise between grip, performance and wear. The harder middle section ensures good rolling characteristics and a long service life, the softer shoulders contribute the necessary grip in curves. Tubeless Ready These tyres can also be ridden tubeless if a tubeless rim is used and the maximum inflation pressure indicated on the tyre sidewall is not exceeded. You also need an appropriate sealant and the tyre inflation pressure should be checked before every ride. Contents:1 x Michelin Force XC Racing 29" folding tyre Weight: black | 29 | 54 mm | 54-622 | 2.1 : 680 g black | 29 | 57 mm | 57-622 | 2.25 : 710 g Manufacturer: Michelin Reifenwerke AG &Co. KGaA The Squaire 17 – Am Flughafen 60549 Frankfurt am Main Germany info@michelin.com