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STM Slipper Clutch: BMW S1000RR

Was:$1307.95
Sale:$1242.55 FREE Shipping


The STM Wet Slipper Clutch is specifically designed for wet clutch applications in road bikes. The clutch uses the cornerstone of STM technology, the 'Ball & Ramp' actuation for smooth slipper clutch operation along with another STM exclusive .. 'FLS', our Forced Lubrication System. The STM 'FLS' - Forced Lubrication System increases the amount of engine oil flowing through the wet clutch, which leads to cooler running temperatures and cleaner conditions thus increasing the performance and longevity of the clutch components. In addition, it uses a Diaphragm Primary Spring and an 85mm Diaphragm Secondary Spring. By using diaphragm springs in both the primary and secondary .. the Evolution Wet Slipper Clutch offers superior adjustability to suit any riding style and engine modification.

The primary spring controls the pressure on the clutch pack during lock up. STM diaphragm primary springs are weighted in Kilograms and offered in 10Kg increments. There are 11 different weights to choose from (sold individually). Through the use of varying weights, the engine builder can adjust the amount of pressure on the clutch pack to compensate for any engine modifications and subsequent increases in horsepower.

The secondary spring is what controls the amount of engine brake. The lighter the secondary spring, the less engine brake; the heavier the secondary spring, the more engine brake. The 85mm diaphragm secondary springs are weighted in Kilograms and offered in 10Kg increments. There are 6 different weights to choose from (sold individually). Through the use of varying weights, the rider can adjust the amount of engine brake desired to fit their individual riding style.

Wet slipper clutch utilizes "FLS" - Forced Lubrication System

1000cc clutch uses a 125mm diaphragm spring to handle horsepower output

600cc clutch uses a 121mm diaphragm spring

Diaphragm spring provides more pressure under lock up with less drag than helical springs and offer a digressive lever engagement


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