Genuine replacement parts Prowheel: Crank it up! Shift smooth, use matching chainrings. - Bosch Generation 3 specific e-bike narrow wide chainring - Aluminum spider and steel chainring -104mm BCD
$12.99 - $27.00
Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.
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