2015 BMC Alpenchallenge AC01 IGH Alfine 11
Technology and innovations from the rapid road bikes can easily be seen in the new design. BMC has incorporated aero advantages from the Time machine models and integrated the benefits of angle compliance from the Granfondo designs. BMC has designed a cut-away shape into the seat tube for more than an aerodynamic advantage. It also allowed BMC to match the 412 mm chain stays of the Granfondo GF01, while at the same time creating clearance for fenders and wider tires, resulting in road responsiveness with urban utility. the carbon and aluminum forks were designed in conjunction with the frame, and dimensioned specifically for the ideal fender, tire and wheel sizes. BMC has minimized the fork length, steepened the frame’s head angle and optimized the fork’s trail dimension to achieve quicker steering while retaining confidence-inspiring stability. Proprietary Curana fenders can be installed or removed in seconds, allowing riders to change faster than the weather. Aftermarket fenders can be bolted directly to the frame and fork, eliminating noisy, heavy adaptors.