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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. Comes equipped with the powerful, efficient and light-weight Shimano STEPS E6100 drive unit and Shimano Deore 10-speed derailleur.