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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
SHIMANO Equivalent RD-TY21 / RD-A070
ETROTO: 57-584 Inch: 27
Please select your Aventon ebike model
you want to protect the bike and components when you are not riding to prolong their life
Box Components Box Four 8 Speed Wide/Narrow Chainring Black Friday SHIMANO Equivalent RD-TY21 / RD-A070The Box Four Wide Narrow chainring completes that package for the 1x8 system. It is the first 8 speed specific chainring designed to optimize chain retention when using 8 speed chains. The tooth profile and thicknesses are tailored to match the inside geometry of the unique Box Four chain.
US$ 20.00
US$ 70.00
US$ 35.00
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