Truvative and SRAM cranks use a unique bearing on the non-drive side. Because of this we have manufactured an adaptor that enables you to use a standard Outboard Bottom Bracket cup with Truvativ and SRAM cranks. We make this adapter out of 7075 aluminum and anodize it a gun metal gray for corrosion protection. The adaptor has a weight of 8 grams. The drive side bearing will still use a .
 
Please note: This adaptor does not work with all cranksets as SRAM makes slight changes to each of its models preventing compatibility.