STM

STM

 


Thanks to the technological strength built and confirmed over the years, STM ITALY SRL has deemed necessary a change in the marketing-commercial-R & D, to push the STM brand "Selection of Mechanical Technologies" towards new important objectives. The Vision of STM ITALY will be the same as always: to be a leader in the anti-friction sector, anticipating the future. This will allow us to provide both innovative solutions to the professionals of MotoGP, WSBK, MOTOCROSS and SUPERMOTARD, and the best production quality with the best materials for increasingly high performance and innovative products on the world market And not only. We will also expand the range of our aftermarket products with new products rich in unprecedented solutions. The objective of STM ITALY will therefore be KAIZEN, that is continuous business improvement, recalling the Company's history, maintaining its merits and resolving its defects. Historia eST Magistra vitae. History is a teacher of life.

Manufacturer of Slipper Clutch

EVO SBK


Heart of the STM Slipper Clutch...

Primary Spring:

  • pressure action on the DISC PACK through the pressure plate.
  • function of coil springs.

Secondary spring:

  • pressure action on the DRUM.
  • it is used to adjust the opening of the clutch during the anti-skid, then to adjust the engine brake.

How the springs work
The primary and secondary springs are mounted in such a way as to guarantee a preload which generates an initial resilient spring force.

How the primary spring works
When the lever is actuated, the preloading position of the primary spring is varied and reduced. The spring returns an elastic force of contrast to the action of the lever.

How the secondary spring works
The torque generated by the rear wheel tends to raise the drum. The secondary spring is compressed with respect to the initial resting position and generates an elastic contrast force.




Motobull is an approved dealer for STM, we can supply most STM wet clutch and dry clutch kits, we can also supply STM clutch tools and accessories. If you cannot see the parts for your bike in the web store please give us a call, we're only too happy to help...or send us a message Contact Us


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  1. STM Evo GP Dry Conversion Clutch Kit BMW S1000RR / R / XR / HP4
    Special Price £2,155.00 Regular Price £2,628.00
  2. STM Evo GP Dry Conversion Clutch Kit Ducati XDiavel / XDiavel S
    Special Price £2,005.00 Regular Price £2,446.00
  3. STM Slipper Clutch APRILIA RSV4 2009-2018 - FAP-S040
    Special Price £746.00 Regular Price £910.00
  4. STM Slipper Clutch DUCATI 899 PANIGALE - FDU-S040
    Special Price £399.00 Regular Price £910.00
    Out of stock
  5. STM Slipper Clutch DUCATI PANIGALE V4 - FDU-S100
    Special Price £746.00 Regular Price £910.00
  6. STM Slipper Clutch MV AGUSTA - FMV-S020
    Special Price £399.00 Regular Price £927.54
    Out of stock
  7. STM Slipper Clutch SUZUKI GSX1300R Hayabusa 1999-2019 - FSU-S120
    Special Price £746.00 Regular Price £910.00
  8. STM Slipper Clutch Tool UTL-0030 / 002AMS001
    Special Price £139.00 Regular Price £154.70
  9. STM Slipper Clutch TRIUMPH DAYTONA 675 2006-2012 - FTR-S010
    Special Price £746.00 Regular Price £910.00
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