Honda Supermotard Tuning Packages

All the engine-tuning packages are intended for race use only. Every care and attention to detail is taken in the preparation of racing engines at HM Racing. However, it is a condition that HM Racing will not guarantee or accept any liability for accidents or injuries arising from racing, as engines used in competition are highly stressed.

Honda CRF250 Silver Tuning Package  -  Excellent for both Motocross and Supermoto.

Modifications

Top end strip & rebuild. Re working of valve seats, combustion chamber, ports and valves. Set up compression ratio. Rebuild engine.

£395 + VAT (including parts, labour) Additional parts may be required, this estimate is given assuming engine is in sound condition.

High Compression Piston Kit, add £120 + VAT

Make "Backing it in" easier with a slipper clutch!

Honda CRF450 Silver Tuning Package  -  Excellent for both Motocross and Supermoto.

Modifications

Top end strip & rebuild. Re working of valve seats, combustion chamber, ports and valves. Set up compression ratio. Rebuild engine.

£395 + VAT (including parts, labour) Additional parts may be required, this estimate is given assuming engine is in sound condition.

High Compression Piston Kit, add £120 + VAT

Make "Backing it in" easier with a slipper clutch!

XR650R Silver Tuning Package

Modifications

Top end strip and rebuild. Re work valve seats, cut multi angle seat. Re work combustion chamber and ports. Re profile valves. Fit high compression piston, set up compression ratio.

The above modification cost £450 + VAT

High Compression Piston Kit, add £160 + VAT

Plus gaskets as used. Additional parts may be required, this estimate is given assuming engine is in sound condition.

 George Clemments and his HMR CRF450