The Wheels Manufacturing 386 EVO Adaptor for SRAM is designed to adapt a 386 EVO bottom bracket shell to accept a SRAM DUB crankset spindle. This allows cyclists to use a SRAM DUB crankset with a 386 EVO bottom bracket shell, which is commonly found on road and gravel bikes. The Wheels Manufacturing 386 EVO Adaptor is CNC machined from high-quality aluminum alloy for durability and precision. It installs easily into the bottom bracket shell with no special tools required. The adaptor is compatible with SRAM DUB cranksets, which have a 28.99mm spindle diameter.