02-05 Honda CRF450R Close Ratio 6 Speed Gearbox

Turns a standard Honda CRF 450 5 Speed motocross engine into a road racing missile!!  A completely original design requiring new gearshafts selector drum and forks.  Prototypes ridden in the British Supermono Championship by Jeff Claridge and Michael Payne have shown the way forward; the pair finishing 5th and 2nd in 2009.

This kit includes two assembled shafts, a new selector drum and three selector forks.

The gearbox needs to be assembled using Honda parts, we can supply these at an additional cost.  These are not the same as the standard CRF450 gearbox parts. Please contact us for what is required.

   
Nova Race Gearset >
Honda Moto X Box in Parenthesis
1st 15 - 27 1.800:1
} 21.6% (18.3%)
} 13.5% (16.0%)
} 10.4% (15.0%)
} 8.7% (13.4%)
} 7.7%
2nd 17 - 24 1.412:1
3rd 18 - 22 1.222:1
4th 21 - 23 1.095:1
5th 23 - 23 1.000:1
6th 26 - 24 0.923:1
 
Overall reduction 1st - 6th 48.7% (49.5%)
Related Products>
CRF Primary Drive
CRF Billet Engine Case for RS125

02-05 Honda CRF450R Close Ratio 6 Speed Gearbox

Price £2075.00

+VAT (if applicable) & Carriage

Availability: Call