- The perfect racer, thanks to its perfect combination of speed and grip. The Racing Ralph works perfectly on the rear wheel in combination with Rocket Ron. Tread design features a low tread depth in the central tread for high speed and low weight. **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. * 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. PERFORMANCE Folding Version: With Twinskin extra rubber coating. **Features:** * E-BIKE READY: For motor assist up to 25kph * SIDEWALLS: TwinSkin which is an additional rubber coating to protect against cuts * Pressure: 1.80 - 3.70 Bar * Maximum load: 120kg * TPI: 67 TPI *WEIGHT: 680g **ETRTO:** * SCM520: 60-622 * SCM521: 57-622
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