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Discussion Starter #1 (Edited)
Here they are
F4 750 + Brutale 750 & 910 +1000S&R UP TO the 312 are all same

1st 2.923 13x38
2nd 2.214 14x31
3rd 1.778 18x32
4th 1.500 20x30
5th 1.318 22x29
6th 1.190 21x25

SPR close ratio

1st 2.643 14x37
2nd 2.063 16x33
3rd 1.800 15x27
4th 1.578 19x30
5th 1.434 23x33
6th 1.333 18x24

312

1st 2.643 14x37
2nd 2.063 16x33
3rd 1.722 18x31
4th 1.500 20x30
5th 1.318 22x29
6th 1.190 21x25

1st & 2nd on the 312 are the same as an SPR, 3rd is different but 4th, 5th and 6th are the
same as the earlier bikes

NB 750s have a different primary gear ratio so the clutch baskets are different than
the rest of the 1st Gen MVs
750s have a smaller diameter mainshaft 25mm vs 27mm so if you want to use an SPR close ratio gear box in a 1000
you must change the ball bearing behind the clutch

So counting the teeth on 1st and 6th will tell you which transmission you're looking at

Have fun>:)
 
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