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MX R-Evolution Clutch

MX R-Evolution Clutch

$499.94
Retail Price $584.95

The new “MX R-Evolution” is a long-life light-weight clutch specifically designed by STM technicians to bring clutch performance to the next level in terms of precision, response and control.

The new MX R-Evolution clutches contain many of the technical solutions developed by STM in recent years:
“Evoluzione” Spring Technology - All “R-Evolution” clutches are equipped with “Evoluzione” springs which are the result of STM's diaphragm spring technology. Years of cooperation with top SX and MX teams have proven the advantages of our “Evoluzione” spring over the traditional coil springs used by OEM clutch manufacturers. The digressive action of the “Evoluzione” spring allows for faster engagement of the clutch and superior precision and control of the clutch when actuating the clutch lever (this also translates into better starts).
Innovative Hub Design - “R-Evolution” clutches have an innovative hub design that allows optimal clutch response when operating the lever and consistent performance throughout the race. The steel guides on the hub guarantee a better disengagement of the disc pack and long life of the clutch hub.
No-wear Inserts - “R-Evolution” hubs and pressure plates contain no-wear inserts that avoid wear caused by the friction plates on the aluminium surfaces.
STM Tempered Steel Discs - All “R-Evolution” clutches come with tempered steel plates designed to match the STM hub design and to work with the original friction plates. These discs guarantee a constant rate of consumption of the disc pack inside the clutch and lead to longer life of the hub.
Forced Lubrication System (FLS) - The “R-Evolution” clutch is designed to ensure improved lubrication of the clutch components. STM's forced lubrication System ensures optimal circulation of engine oil trough specifically designed passageways. FLS guarantees consistent clutch performance throughout it's range of use and extends the life of the individual clutch components.
“R-Evolution” clutches can be fitted with the OEM clutch basket or with STM off-road baskets (sold separately), using OEM friction plates.

This is NOT a slipper clutch

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