Feature : Boost – 3mm outward
Ring : 20T, 18T, Narrow/Wide ring
Ring Material /Finish : Steel ED BK
Note : eg; ESPR-18/N+3mm
E-BIKE For Boost (w/Bosch system) ESPR- (teeth size) /N+3mm
Feature : Boost – 3mm outward
搶先評價 “E-BIKE For Boost (w/Bosch system) ESPR- (teeth size) /N+3mm”
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