Thread: FS or FT: Stronglight 45 Cottered French crank
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Old 09-06-18, 09:00 PM
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Originally Posted by jj1091
I'm sure he means "spindle", not axle. But, French cottered spindles have a diameter of 15.5 mm (0.610") and most others, 0.625" (5/8"). So, you can fit an English cottered crank arm onto a French spindle (a little slop, but the cotters tighten up the loose fit), but you can't fit a French cottered crank arm onto an English spindle because it's too small to fit.
Not quite correct. French spindles are 16mm. So an English crank arm will not fit on a French cottered spindle. That is the situation I have. I would not recommend putting a French arm on an English spindle even though it sort of fits.

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