Tune your bike with the same VHM high performance parts as used by many previous World, European and National champions!
Tune your fuel-injected engine with our VHM upgrade kit parts! It consists of our VHM 12° piston kit with two piston rings for optimal performance in combination with a VHM head, insert and a special lightweight connecting rod! The conrod weighs 19 grams less compared to OEM conrod and improves throttle response.
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 test KTM 125SX 2023 with VHM head and 12° insert and piston
Tune your bike with the same VHM high performance parts as used by many previous World, European and National champions!
Tune your engine with our VHM upgrade kit parts! Our VHM 12 degree piston kit, manufactured from high grade aluminium, keeps it's high performance during lifetime. The VHM middle inertia crankshaft with modified balance and inertia ensures less vibration and smooths the power delivery to the rear wheel. These tuning parts on your engine are further optimized by using our VHM ignition map from our CDI unit.
It's also possible to go for the lightweight conrod option with our VHM crankshaft AK20252R3 or seperate conrod CRK1502. In addition, we also have a 12° VHM piston with two piston rings available!
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 test KTM 125SX 2020 with VHM upgrade kit
Dyno test KTM 125SX 2019 with VHM 12 degree piston kit, cylinder head and insert
Upgrade parts explained
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De Vlonder 208
5427 DH Boekel
Netherlands
+31 492 32 45 95
info@vhm.nl
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