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The 51-tooth rear sprocket is designed to optimise power delivery for the big-wheel chassis
hook the loops at the end of the cable onto the HELMETLOK (sold separately) and attach it to your bike
Utilises a combination of impact-resistant nylon and a stylish carbon fibre reinforcement layer
Includes a 43-tooth rear sprocket precision-machined for perfect chain alignment
Robust wiring harness is built to withstand repeated flexing and outdoor weather conditions
Speed Box 1.1 For Bosch (Smart System) size-200-60-17 The 51-tooth rear sprocket isThe Speed Box 1. 1 is an advanced tuning module designed specifically for Bosch Smart System drives to enhance the assistance profile. This discrete internal component allows riders to access the full potential of their motor without compromising the drive unit's integrity. Digital interface provides seamless integration with the factory electronics. Real time data processing ensures smooth power delivery across the range. Internal installation keeps
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