Is BB386EVO compatible with BB30?
Is BB386EVO compatible with BB30?
“The BB386 EVO cranks are compatible with almost every BB shell standard (BSA, BB30, PF30, BB86),” says Jason Miles of FSA.
What is a BB386EVO bottom bracket?
The BB386EVO design simply modifies the BB30 design to a wider width, and incorporates a press fit bearing cup, rather than the direct fit bearing of the BB30 system. This slight modification allows the adaptability of the design to other BB shells, and gives the frame builder more landscape to craft their frames.
Is the BB386EVO crank system compatible with a threaded bottom bracket?
The other major factor in its favour is that the BB386EVO crank system is compatible with threaded bottom bracket shells. In other words, although it’s essentially a press fit system, you can get a BB386EVO bottom bracket that’ll fit a threaded 68mm BB shell, so you can use new standard cranks on an old standard frame.
What’s the difference between the BB30 and BB386EVO?
Anyway, the new BB386EVO system is press fit and uses an 86.5mm bottom bracket shell width – the frame is wider down there than currently and the axle is as long as that of an external system. And the axle diameter is 30mm – the same as BB30. Clear? Okay, so what are the advantages? According to FSA:
Can you run an Evo crankset on a BB30?
If you do decide to run an EVO crankset on a BB30/PFBB30 frame, FSA offers simple spacers to fill the gap between the bottom bracket bearings and the crankarms. For the Pressfit bottom brackets, the ones shown above are the same for either standard PFBB30 frames or EVO frames.
What are the dimensions of a BB 386 crank?
For reference, the Rotor (BSA30), raceface (cinch), and wheels manufacturing all have bottom brackets that fit threaded BB shells for the 386 series (specifically a 30 mm diameter spindle that is ~86 mm wide when the crankset is assembled). Rotor, sram, and raceface all make cranks that have these same dimensions.