Pf42 also known as bb30 bb30a bb30ai bbright direct fit the term pf42 refers to the inside diameter of the shell.
Bb30 crank in bsa frame.
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.
They have the exact same interface.
Use bb30 technology on your english threaded frame.
We currently make bottom brackets and adaptors for bsa bb30 and pf30 frames and are working on bb86 bottom brackets.
If you have above average strength you may reach 40 nm or more.
This configuration makes for a weight savings of 70g from the previous setup to the integrated chain ring setup.
Use the crankset you want with your frame.
First s t30 bottom bracket bsa adapter comes with its own special wrench.
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.
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.
You can however use the raceface 68 73mm spindle on cannondale hollowgram cranks with most of the bsa30 threaded cups.
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.
Si crank bolts 14g.
Rotor s bsa30 bottom bracket allows the installation of bb30 cranks into a standard.
It may or may not be worth it but it looks great and it can be done.
Before the introduction of bsa30 there really wasn t an answer to this question.
Va bb30 to bsa adapter sram truvativ pressfit to external bottom bracket 68 73 powered by bb30 to bsa adapter item.
Frames with bb386 evo shells should be able to run almost any crank.
Recommended torque is in the range of 35 nm to 45 nm.