Kawasaki ZX12 Gearbox

A direct replacement of the standard gears, we supply all loose gears for both shafts.

All gears are the same ratio as standard and incorporate 3 undercut engagement dogs for rapid changes and positive retention when engaged.

The gears should be assembled onto the standard input & output shafts using the standard circlips, bearings, bushes, thrust washers etc.

1st 14 – 34 2.429:1
} 24.9%
} 21.0%
} 13.2%
} 9.6%
} 8.6%
2nd 17 – 31 1.842:1
3rd 25 – 36 1.440:1
4th 24 – 30 1.250:1
5th 23 – 26 1.130:1
6th 30 – 31 1.033:1
Overall reduction 1st – 6th 57.5%

Kawasaki ZX12 Gearbox

Price £POA

+VAT (if applicable) & Carriage

Kawasaki ZX12 W/R Gearbox

Designed for front engine rear wheel drive road cars where it is not possible to achieve the desired overall rear axle ratio. The extended range of the Nova gearbox overcomes this problem. 1st to 4th have the same ratio as standard but both 5th & 6th gears have been raised.

Superfinished as Standard

1st 14 – 34 2.429:1
} 24.9%
} 21.0%
} 13.2%
} 13.6%
} 11.0%
2nd 17 – 31 1.842:1
3rd 25 – 36 1.440:1
4th 24 – 30 1.250:1
5th 23 – 26 1.077:1
6th 26 – 28 0.958:1
Overall reduction 1st – 6th 60.54%

1st 14 – 34 2.429:1
} 24.9%
} 21.0%
} 13.2%
} 9.6%
} 8.6%
2nd 17 – 31 1.842:1
3rd 25 – 36 1.440:1
4th 24 – 30 1.250:1
5th 23 – 26 1.130:1
6th 30 – 31 1.033:1
Overall reduction 1st – 6th 57.5%

Kawasaki ZX12 W/R Gearbox

Price £POA

+VAT (if applicable) & Carriage.

Nova assembly: 242