Omschrijving

The world famous golden VHM head with exchangeable combustion chamber is specially developed for optimal power output during the whole race and has an improved water duct. It's manufactured from a high quality alloy and O-rings are used for the sealing.

 

• More engine power
• Better heat transference
• Exchangeable combustion chambers available

The CDI has a mapping developed by VHM.  Specially developed to get the maximum performance with our VHM upgrade kit parts. Map 1, the VHM HIGH performance map, is developed, tested and programmed by us in combination with VHM upgrade kit parts. We've improved the ignition curve for the best performance. You can also switch to map 2, the VHM SOFT map for less wheel spin, switch is included with the CDI unit.

 

Available with inserts, K (19.5cc), L (20 cc), M (20.5 cc - VHM Standard) and N (21cc)

 

 

The smaller the volume of the inserts, the higher compression ratio you will get, meaning more low and middle range torque. This improves acceleration and gives an increased torque feeling when exiting corners. However, keep in mind that this compromises top speed. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for identification.

 

More volume in the inserts than the standard VHM will resulot in lower compression ratio, meaning better overrevolution characteristics and more top speed. However, keep in mind that this compromises bottom power reaction. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for identification.

 

Click on the links below for a test movie from VHM with your Beta

 

Beta RX 250 VHM