BB86 vs BB92
Quick verdict
BB86 (press-fit, 41mm bore, 86.5mm wide, press-fit cups) and BB92 (press-fit, 41mm bore, 92mm (89.5mm road) wide, press-fit cups) are different frame standards and are not interchangeable. Buy the bottom bracket that matches your frame, then match its spindle to your crank.
| BB86 | BB92 | |
|---|---|---|
| Full name | BB86 Press-Fit (Road) | BB92 Press-Fit (MTB) |
| Fitment | press-fit | press-fit |
| Shell | 41mm bore, 86.5mm wide, press-fit cups | 41mm bore, 92mm (89.5mm road) wide, press-fit cups |
| Also known as | BB86, Press Fit 86, PF41 road, 86.5 | BB92, Press Fit 92, PF41 MTB, BB89.5 |
| Frames listed | 34 | 27 |
| Bottom brackets listed | 34 | 9 |
| Guide | BB86 compatibility → | BB92 compatibility → |
Frequently Asked Questions
Can I fit a BB92 bottom bracket in a BB86 frame?
No. BB86 (41mm bore, 86.5mm wide, press-fit cups) and BB92 (41mm bore, 92mm (89.5mm road) wide, press-fit cups) are different frame interfaces, so a BB92 bottom bracket will not fit a BB86 frame. You need a bottom bracket built for your frame's standard.
What is the difference between BB86 and BB92?
BB86 is press-fit (41mm bore, 86.5mm wide, press-fit cups); BB92 is press-fit (41mm bore, 92mm (89.5mm road) wide, press-fit cups). Both are press-fit standards, so they differ mainly in shell dimensions and which frames use them.
Check your exact combination
Frame standard, bottom bracket and crank spindle all have to line up. Drop your parts into a build and our engine verifies the whole bottom-bracket chain for you.
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