The perfect racer. Faced with the extreme challenges of today's XC tracks. Schwalbe have completely revised Racing Ralph. The result is a very fast and versatile XC profile, specially developed for the rear wheel. Profile Design: Numerous grip edges in the tread centre for super traction and excellent acceleration. Good rolling properties and extremely quiet. Tubeless Easy Version: with ADDIX Speed (red) for speed, stability and durability.     Specification Size: 26" . Type: Folding. Compound: Addix Speed. Execution: Super Ground TLE.     Weight: 565g.