Frequently asked questions

FAQ SuterClutch

Troubleshooting

  

I already have an anti-hopping clutch ex-factory, what is the advantage of a SuterClutch compared to it?

An OEM Clutch usually functions according to the ON/OFF principle (no intermediate states between open and closed possible). The SuterClutch has a much smoother and more precise response:

Besides, you can adapt the response behaviour individually to the driver, which is usually not possible with OEM clutches.

  

What justifies the price difference between SuterClutch and competing products?

Just by looking at the construction you can see that the SuterClutch consists of much more and more complex parts, as a standard clutch. Besides, we use only high-quality materials refined to ensure the highest possible stability and longevity (e.g. Teflon-containing special coating to minimise abrasion).

  

What is the setup recommendation for the MX Bikes (BTL)?

Generally, for high-level racing, you should run the main spring a bit harder than the OEM clutch. A good-level MX rider prefers a faster clutch reaction for the start, corner exit or whenever he needs to give an extra kick to the bike.
Our experienced has shown that on 450cc bikes we use a BTL spring between 600N and 850N, for 250cc bikes, between 500N and 750N. Young riders coming directly from two-stroke bikes like less engine brake. So, the BTL can be set lower, somewhere between 400N and 600N.
The so-called “Gap” is usually set at about 1mm. If the gap is only 0.5mm at the start of a race, there is a risk that the clutch disc will wear out considerably and that the gap will be 0 mm.. This causes the clutch to slip under acceleration = DNF. To run the Gap over 1.2mm also makes no sense, as the reaction time of the BTL system is too slow.
If the rider likes to have a more aggressive and faster clutch reaction for corner entry/exit, you can adjust this behavior by using a harder main spring. Also, there are different plate packages available that have more “bite”.
With a little testing, each rider can tailor his SuterClutch to his own riding style and will succeed in achieving faster lap times. Each rider has to find his own Clutch/BTL Set up, a compromise between smooth cor-ner entry and enough engine brake for jump takeoffs, as well as a controllable bite for hole shots or cor-ner exit. For sand tracks, we found that usually, a one-step softer BTL spring helps to keep the front end of the bike higher at off throttle.

  

How do I become an official Suter dealer?

Please send us your request via email to order@suter-industries.ch, and we provide you with all the necessary info.

  

How do I install a SuterClutch?


Troubleshooting

The clutch is slipping during acceleration

  • Fault: plate package thickness not according to specification
    Solution: adjust plate package thickness according to user manual
  • Fault: plate package worn out
    Solution: replace plate package
  • Fault: engine has more power than the OEM version
    Solution: change main disc spring to the next harder spec.
  • Fault: pressure or back plate worn out due to mileage
    Solution: replace worn out parts

  

The clutch does not disengage properly (hard to find neutral / shift down)

  • Fault: clearance on clutch cable / lever to big
    Solution: check and adjust clearance
  • Fault: plate package overheated / steel plates deformed
    Solution: replace plate package

  

The anti-hopping behavior changed

  • Fault: plate package worn out
    Solution: replace plate package
  • Fault: back or pressure plate worn out
    Solution: replace worn out parts

  

The anti-hopping effect too soft/hard

  • Solution: replace torque limiter spring with a harder / softer one

Tips

  • the small torque limiter spring only affects the anti hopping effect and is used to adjust it.
  • several bikes manufacturers have optional steel clutch plates in different thicknesses available. This might help, if you need to adjust the plate package thickness.