trying to sort out which diff to use for a zx12r does anybody have the gear ratios please

best regards

marc

Take a look here:

http://jarle.eltelevest.no/Kawasaki/Other/Teck/teck_zx-r.htm

Transmission 6-speed, return
Primary drive Gear
Final drive Sealed Chain
Primary reduction ratio 1.596 (83/52)

Gear ratios:
1st 2.429 (34/14)
2nd 1.824 (31/17)
3rd 1.440 (36/25)
4th 1.250 (30/24)
5th 1.130 (26/23)
6th 1.033 (31/30)

Final reduction ratio
2.556 (46/18) B1-B3, 2.500 (45/18) A1-A2
Overall drive ratio
4.215 @ top gear B1-B3, 4.123 @ top gear A1-A2

Mark

From the bike ratios spreadsheet they come out as follows

Primary Reduction 1.596

1st - 2.428
2nd - 1.823
3rd - 1.440
4th - 1.250
5th - 1.130
6th - 1.033

In practice assuming a 11700 red line (not sure if this is right or not?) - it makes it about 5mph higher in top at max revs compared with a blade, using a 3.36 diff (128mph against 133mph). All according to the spreadsheet tho, not sure if its accurate or not. I'll email it across to you though so you can have a play

Chris

Doh! beaten to it

thanks guys

marc

I should have said, those speeds were with 185/60 - 13 tyres.