Have a Shimano Crank and trying to mount it in a BB30 Frame?
No worries. 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 alignment like other current adaptors in the market.
*Compatible with most Shimano™, Race Face™, and FSA™ external BB configurations that use a 24mm crank spindle.
Strengths: perfect fit, easy install, great instruction videos.
Weaknesses: Wish it was around a year ago :-)
Bottom Line:
I was lucky enough to receive a preproduction BB from Praxis works, I struggled to find a BB for my PF30 S-works Stumpjumper and run my XTR crankset. After 2 DNFS and 2 broken sets of Specialized adapters I installed the Praxis works BB and have not looked back. Very easy to install, converted my PF30 to work with my shimano cranks perfectly.
After 6 months of winter riding (snow, mud rain, etc) the BB is still running flawlessly.
