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FIR Bolder E-Bike 29 "Shi Wheelset The bolder is a wheel made by our engineers to meet the needs of a new fast growing sector, that of e-bikes. The world of electric mtb is in strong evolution and the needs are often different from those of normal muscle bikes, with the Bolder we wanted to study a wheel that best suits these bikes, characterized by greater weight and greater energy. Internal channel 33 mm Front weight 970g Rear weight 1070g 32 Holes Tubeless Ready Boost hubs E-bike use Asymmetrical profile
