Cube reaction gtc sl 29 hardtail bikewhen you leave the rest behind on the gtc sl itll be clear why theres simply no serious competition for this standard setting racer the gtc carbon frame with high performance lightweight components a complete xt group and new fox 32 float performance sc suspension fork is the ideal bike for cross country marathon racing or just epic day rides the 29 wheels allow you to carry high speed over a great variety of terrain framenext to the reaction gtc