Bb30 Crank In Bsa Frame

Specialized adapted their s works crank for overend to work in a bsa bb using some zipp vumaquad 30mm threaded cups a few years back.

Bb30 crank in bsa frame.

Bb30 specifically refers to a standard that used 68 or 73mm shells with a 42mm inner diameter meant to press 6806 bearings directly into the frame which had a 30mm internal diameter. Frames with bb386 evo shells should be able to run almost any crank. It may or may not be worth it but it looks great and it can be done. This configuration makes for a weight savings of 70g from the previous setup to the integrated chain ring setup.

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. Va bb30 to bsa adapter sram truvativ pressfit to external bottom bracket 68 73 powered by bb30 to bsa adapter item. 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. They have the exact same interface.

Rotor s bsa30 bottom bracket allows the installation of bb30 cranks into a standard. Recommended torque is in the range of 35 nm to 45 nm. If you have above average strength you may reach 40 nm or more. Use bb30 technology on your english threaded frame.

Before the introduction of bsa30 there really wasn t an answer to this question. Pf42 also known as bb30 bb30a bb30ai bbright direct fit the term pf42 refers to the inside diameter of the shell. 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. 121mm bb30 spindle 91g.

Use the crankset you want with your frame. We currently make bottom brackets and adaptors for bsa bb30 and pf30 frames and are working on bb86 bottom brackets. You can however use the raceface 68 73mm spindle on cannondale hollowgram cranks with most of the bsa30 threaded cups.