Clutch spider -MMW Hartz 4.2- Vespa Smallframe V50, V90, SS50, SS90, PV125, ET3, PK50, PK80, PK50 S, PK80 S, PK125 S, PK50 XL, PK125 XL, ETS, PK50 HP, PK50 SS - Hartz 4.2 (PX flywheel puller, ESC version) | Clutch spiders | Clutch | Engines

Preview: Clutch spider -MMW Hartz 4.2- Vespa Smallframe V50, V90, SS50, SS90, PV125, ET3, PK50, PK80, PK50 S, PK80 S, PK125 S, PK50 XL, PK125 XL, ETS, PK50 HP, PK50 SS - Hartz 4.2 (PX flywheel puller, ESC version)

Description

Racing clutch for Smallframe engines. Also works perfectly in everyday life.

A powerful engine is only as good as its clutch. Often the rudimentary functions such as a clean separation and a strong frictional connection are already problematic with the original clutch...

MMW has taken up the issue and designed a clutch based on motorcycle linings with sintered components. Here every available space was fully used to install an extremely solid clutch which is always in front even during several hours of racing. All components have been designed from scratch and offer in combination with the very heat-resistant and wear-resistant pad material certainly one of the most professional solutions to get a high engine power permanently and safely on the road.

The clutch is used in countless DBM and ESC racing cars and has established itself as THE clutch par excellence within a very short time. The version 4.2 replaces all other versions.
It has an integrated clutch extractor thread (the pole wheel extractor of the PX/PK models (M28x1) fits). The primary pinion can be exchanged without removing the clutch. Interesting if e.g. when preparing for a race, the transmission ratio should be changed quickly using a different primary pinion.

Extremely robust construction
4-discs
Honda discs with sintered linings
Repkit integrated
High strength steel, nitrided
Without keyway
Normal oil plate
Completely CNC machined
Made in Germany
Ca. 1550 grams
Incl. 10x spring XL

The clutch should ideally be operated with an oil of the specification class JASO MA2. As viscosity class, the usual 15W/40.
The clutch has an integrated puller thread (M28x1, type Polrad PX/PK).

As lubricant, we recommend the BGM Pro Street gear oil (BGM2025, corresponds to specification API GL-3).

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