Kawasaki ZX10R 2011-2015 Close Ratio D Conversion

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We have designed a taller 1st and 2nd gear more suitable for circuit racing than the standard ratios.  We supply a new input shaft and 1st & 2nd output gears which need to be built into the standard gearbox.  This is a cost effective upgrade for improving the standard Kawasaki gearbox for use on the track.

NOTE: The gearbox should be assembled using all other genuine Kawasaki gears, bearings, bushes, thrust washers etc.

Please contact us if you want other ratios for the standard gearbox, or a full close ratio gearbox manufacturing with racing engagement dogs.

 

Nova Close Ratio D Gearset >
1st 18 - 44 2.444:1
} 18.2%
} 13.2%
} 9.6%
} 8.1%
} 6.6%
2nd 19 - 38 2.000:1
3rd 19 - 33 1.737:1
4th 21 - 33 1.571:1
5th 18 - 26 1.444:1
6th 23 - 31 1.348:1
 
Overall reduction 1st - 6th 45.4%
Kawasaki Standard Gearbox >
1st 15 - 39 2.600:1
} 21.0%
} 15.4%
} 9.6%
} 8.1%
} 6.6%
2nd 19 - 39 2.063:1
3rd 19 - 33 1.737:1
4th 21 - 33 1.571:1
5th 18 - 26 1.444:1
6th 23 - 31 1.348:1
 
Overall reduction 1st - 6th 48.2%

Kawasaki ZX10R 2011-2015 Close Ratio D Conversion

Price £725.00

+VAT (if applicable) & Carriage

Availability: Call

Kawasaki ZX10R 2011-2015 Close Ratio F Conversion

This close ratio conversion has been designed to be similar to the previous model ZX10 and has found to be favorable for endurance racing and the longer road race tracks.

The set comprises 2nd input, 3rd/4th input and 1st to 3rd output gears. 

All engagement dogs are undercut to promote positive engagement and are optimized for racing use.

The output gears must be built onto the standard Kawasaki output shaft and a new set of washers, bushes and circlips are supplied, for both shafts.

 

Nova Close Ratio F Gearset >
1st 18 - 44 2.444:1
} 18.2%
} 13.2%
} 9.6%
} 8.1%
} 6.6%
2nd 19 - 38 2.000:1
3rd 19 - 33 1.737:1
4th 21 - 33 1.571:1
5th 18 - 26 1.444:1
6th 23 - 31 1.348:1
 
Overall reduction 1st - 6th 45.4%
Kawasaki Standard Gearbox >
1st 15 - 40 2.667:1
} 18.4%
} 17.3%
} 12.7%
} 8.1%
} 6.7%
2nd 17 - 37 2.176:1
3rd 20 - 36 1.800:1
4th 21 - 33 1.571:1
5th 18 - 26 1.444:1
6th 23 - 31 1.348:1
 
Overall reduction 1st - 6th 49.5%

Kawasaki ZX10R 2011-2015 Close Ratio F Conversion

Price £900.00

+VAT (if applicable) & Carriage

Availability: Call