THE PERFECT RACER. Faced with the extreme challenges of today‘s XC tracks, we completely revised Racing Ralph. The result is a very fast and versatile XC profile, specially developed for the rear wheel. Numerous grip edges in the tread center for super traction and excellent acceleration. Distinct shoulder studs for excellent lateral grip. Good rolling properties and extremely quiet. FEATURES Super Race In no other discipline is the focus on rolling resistance and weight as critical as it is in cross-country and marathon competition. With the Super Race construction, we are also setting standards in suppleness - no other carcass glides so silky smooth over the ground, and thus providing traction, like Super Race does. Super Ground Combines light weight and stability. Feels comfortable in any terrain. Balanced ratio of puncture protection and smooth rolling. For flowing trails, long rides and any terrain. ADDIX Speed Compound E-25 Tires with the recommendation “E-25” are the perfect choice for all pedelecs with pedal assistance up to 25 km/h. The most important criterion for this recommendation: security. Tubeless Technology For all ambitious sports cyclists Tubeless is the right choice. Only Tubeless achieves the best values in terms of: + SPEED + GRIP + PUNCTURE PROTECTION + COMFORT.Colour: BlackMade in: IndonesiaSpecial Features: Tubeless ReadyTPI: 67.0Type: FoldingWeight (g): 675.0Width (mm): 54.0Diameter: 29/28" (622 mm)Width (inch): 2.1Colour: RedOriginal Colour by Producer: Black/Red