Bb30 Crank Bsa Frame

Pf42 also known as bb30 bb30a bb30ai bbright direct fit the term pf42 refers to the inside diameter of the shell.

Bb30 crank bsa frame.

We currently make bottom brackets and adaptors for bsa bb30 and pf30 frames and are working on bb86 bottom brackets. It may or may not be worth it but it looks great and it can be done. They use a 29 64mm spindle however the problem is bb30 cranks are designed for a narrower q factor so the chain line won t be very good and getting that right is the difficult part. Pf41 frame shell and bearing cup the pf41 press fit standard is available with several bearing inside diameters for various crank spindle systems such as 24mm 28 99mm 30mm and the stepped 22 24mm.

121mm bb30 spindle 91g. Si crank bolts 14g. Recommended torque is in the range of 35 nm to 45 nm. Turning the bearing cup with the wrench to the point where no more movement possible will give you a torque setting of between 35 38 nm.

Well really all you have to do is get some vuma quad cups rotors new bsa 30 cups should theoretically work as well though i m not aware of anyone trying it. Solution to annoying creaking from bb30 bearings directly installed in the frame. Most outboard bottom brackets for bsa threaded frames originally were designed around cranks with a 24mm spindle. C bear pf42 30 instead of pressing bb30 bearings direct into the frame bearings in aluminium housing are pressed.

If you have above average strength you may reach 40 nm or more. First s t30 bottom bracket bsa adapter comes with its own special wrench. Frames with bb386 evo shells should be able to run almost any crank. Qwerty wonders how do i convert an english ultegra 6800 crank to fit a bb30 frame.