We have 3 upgrade kit packages for the 65cc bike! All upgrade kits consist of the VHM head with complementary insert, CDI unit and VHM powervalve unit. For even more performance our VHM 12° piston is added (upgrade kit 2), as well as an extra 0.20mm cylinder base gasket (upgrade kit 3). Go for more power and faster lap times on track!
What's the difference between the 3 kits?
Tune your bike with the same VHM high performance parts as used by many previous World, European and National champions!
Important note
Eeach upgrade kit (1, 2 and 3) requires a different insert to make the parts work together. So you can't use the same insert in all of the 3 kits, you need the matching one!
Powervalve axle DA31028 only fits with ELKO cylinder!
Extra information document upgrade kit 3:
Important note
Powervalve axle DA31028 only fits with ELKO cylinder!
Extra information document upgrade kit 2:
Important note
Powervalve axle DA31028 only fits with ELKO cylinder!
Extra information document upgrade kit 1:
Important note
Powervalve axle DA31028 only fits with ELKO cylinder!
Dyno video KTM 65SX 2024
Tune your bike with the same VHM high performance parts as used by many previous World, European and National champions!
Tune your motocross engine with our VHM upgrade kit parts! The kit is specially composed to gain the best performance from your 65cc bike with VHM parts. This combination of high performance parts, including a 12 degree VHM piston kit, will ensure a faster throttle response, more torque and power for the fastest lap times on track.
Important note
This upgrade kit contains our 12 degree VHM piston, which can only be used in combination with our special insert for 12° piston.
Dyno video KTM 65SX 2020
Instruction video VHM powervalve
Mounting CDI without map switch use
Mounting CDI with map switch use
Upgrade parts explained
Dyno video KTM 65SX 2021 with CDI (CD060221)
Stay updated with our newest products. Only mail and first name are required fields.
De Vlonder 208
5427 DH Boekel
Netherlands
+31 492 32 45 95
info@vhm.nl
Mon-Fri, 8am - 5pm