Run a smaller chainring on your SRAM/Truvativ cranks with the NSB 1× 94BCD 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× 94BCD 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.