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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
strategic design combining multiple layers of fiberglass
ETROTO: 57-584 Inch: 27
*Made of tough
you want to protect the bike and components when you are not riding to prolong their life
simply position your phone and the magnets do the rest
Box Components Box Four 8 Speed Wide/Narrow Chainring Black Friday strategic design combining multiple layersThe 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.
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