The Box Four Wide/Narrow chainring completes that package for the 1×8 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.
FEATURES
– Our 8 is Enough Chainring– Forged & CNC Steel– ED Black Protection– Wide / Narrow 8s Specific– 104 BCD Compatible
