Climbs and descents, with added joy for every ride. The Alpenchallenge AMP Cross is designed for the athlete who prefers not to choose between style and performance for all-day comfort in a super-sleek aesthetic. Borrowing cues from high performance road bikes, the Alpenchallenge AMP is your companion for an amplified experience. Elevate your ride. The BMC Alpenchallenge AMP Cross One comes equipped with the lightweight, powerful and efficient Shimano STEPS E6100 drive unit and the new Shimano Deore M6100 12-speed derailleur.