The choice of the World's fastest track athletes, the TK1 frameset has been ridden to multiple U.S. and world records. For 2012, the TK1 Endurance has been upgraded with an all new layup that makes the frame nearly 400g lighter than the 2011 model while maintaining the same aerodynamic profile. An updated Bayonet 2 fork features Felt UHC Ultimate+Nano carbon fiber and is engineered to provide optimal leading edge aerodynamics while generating supreme power transfer and precision handling.