T47 vs PF30
Quick verdict
T47 (threaded, 47mm shell, M47 × 1mm thread) and PF30 (press-fit, 46mm bore, press-fit nylon/alloy cups) are different frame standards and are not interchangeable. Buy the bottom bracket that matches your frame, then match its spindle to your crank.
| T47 | PF30 | |
|---|---|---|
| Full name | T47 Threaded | PF30 Press-Fit |
| Fitment | threaded | press-fit |
| Shell | 47mm shell, M47 × 1mm thread | 46mm bore, press-fit nylon/alloy cups |
| Also known as | T47 internal, T47 external, T47a, T47i | Press Fit 30, PF30 |
| Frames listed | 45 | 6 |
| Bottom brackets listed | 35 | 50 |
| Guide | T47 compatibility → | PF30 compatibility → |
Frequently Asked Questions
Can I fit a PF30 bottom bracket in a T47 frame?
No. T47 (47mm shell, M47 × 1mm thread) and PF30 (46mm bore, press-fit nylon/alloy cups) are different frame interfaces, so a PF30 bottom bracket will not fit a T47 frame. You need a bottom bracket built for your frame's standard.
What is the difference between T47 and PF30?
T47 is threaded (47mm shell, M47 × 1mm thread); PF30 is press-fit (46mm bore, press-fit nylon/alloy cups). The biggest practical difference is that one threads into the frame and the other presses in — threaded shells are typically more serviceable and less creak-prone.
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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