The Box Four Wide/Narrow chainring completes that package for the 1x8 system. It is the first 8-speed specific chainring designed to optimise chain retention when using 8-speed chains. The tooth profile and thicknesses are tailored to match the inside geom
The Box Four Wide/Narrow chainring completes that package for the 1×8 system. It is the first 8-speed specific chainring designed to optimise 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.
Our 8 is Enough Chainring
Forged & CNC Steel
ED Black Protection
Narrow/wide 8-speed specific
104 BCD Compatible
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