Run a smaller chainring on your SRAM/Truvativ cranks with the NSB 1× 94 BCD Spider. This replaces the stock chainring spider on XX1, X01, X1, X0, X9, S2210, GX, and S1400 cranks. This spider is used to convert GXP cranks to Boost-compatible frames.
The NSB 1× 94 BCD Spider is designed to use SRAM’s 11-speed chainrings. There are no mounting holes for the granny ring, and the single ring’s position has been moved to give a better chainline throughout the entire gear range. The outside tabs accept any 94BCD bash ring for DH or aggressive All Mountain bike applications.