Have a Shimano Crank and trying to mount it in a BB30 Frame?
No worries. Our Praxis Works Conversion Kit is just what you're looking for. Designed to fit in a BB30 frame, the conversion kit BB can be installed to allow for a Shimano* Hollowtech crank to be used on your frame. The bearings are high quality bearings and seals are shield type and quad-ring. This aluminum cartridge design keeps the bearings outboard of the frame for greater rigidity and free of frame/cir-clip tolerance issues that other systems deal with. The shell simply mounts inside a BB30 frame and keeps the bearings in perfectly concentric at all times.  Since it's a cartridge style, the BB can't wiggle out, fall out, or come out of allignment like other current adaptors in the market.  
*Compatible with most Shimano™, Race Face™, and FSA™ external BB configurations that use a 24mm crank spindle.

• For 68mm shell - BB30 Frames Only.
• NOT COMPATIBLE with Specialized 61mm width OSBB frames.
• Watch Install Video here!