Racing Ralph EVO Super Ground Addix Speed Tubeless 29´´ x 2.10 MTB Tyre.Size:29´´ / 2.10.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.Features:- 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.Specifications:- Size:57-622 (29 x 2.25).- Performance:Super Ground, TLE.- Compound:Addix Speed.