Slipper choices... yoyodine, Suter, STM?? (GSXR750)

I have a 2011 GSXR 750 (track only) that is in need of a full on clutch rebuild (hub, baskets, etc). Since I'm already in here, I'm thinking about going aftermarket slipper.

I have zero experience with non-OEM slippers.. anyone have any thoughts on which is best + doable at home by a regular shadetree mechanic (ie. doesn't require a race team to setup)?

Thanks

 

I can't give you a comparison of all 3 but I had a Yoyodyne in a 2013 750 and had zero problems with it. Just set the stack height per the instructions.

 

I just put a suter in a new R1. It was pretty straightforward. We ran a STM in our r6's for a while too.
The suter is allegedly sensitive to the air gap between the rollers and bolts, but I imagine if you set the stack height right on any of them and do as instructions state, then they are all user friendly. If you put an OEM one in incorrectly, it also will not work.
Ive heard really good things about the suter, which is why i went with it.

 

What is the benefit of the Suter over OEM? I saw a good price on one recently for the r6 and was thinking maybe I should get it.

 

The stock r1 clutch worked really well for me, but i found a price on a new suter I couldn't pass up, so I grabbed it to try it. Our older r6's, 06-16, the stock clutch i could never get to where i liked it, so we went to STM at the time.

Essentially the suter slips more so less wheel hop. There is a lot more in depth to it, but primarily to my understanding its less wheel hop, and less engine breaking since the clutch slips.

I like the suter setup a lot because the primary and secondary spring is adjustable. I put the 1100 N in mine to try which is the lightest of the 3. I may even buy a 950n and 850n. Guess I'll see how it is on track. Maybe it will suck, but I HIGHLY doubt it.

 

I don’t have a problem with wheel hop, and I feel like engine braking really helps me on entry. Not sure I would want less, but I’m not exactly breaking track records.

 

Yoyo ftw! I have run them in many different track bikes over the last 14 years and I have never had an issue and they work great. Also never had an issue contacting them for spare or replacement parts.

 

Thanks folks - went with yoyodyne, primarily as it was the most easily available in Canada, but also nothing but good things from everyone I spoke too. Appreciate the insight.

 

IIRC, my yoyo was a rebranded suter. which I was more than ok with

 

Kind of on topic. Do you replace the clutch cover gasket every time you open it to adjust the slipper clutch or replace the clutch? I’m trying to decide if I need a few spare gaskets.

I’m going to be practicing starts every chance I get, so I might go through some clutches. If you saw how insanely, comically, bad I am at the start, you would understand. I went from first row to last place before turn 1 at Roebling this weekend. I think I’d be safer just waving my hands because then it would at least be obvious I’m not moving forwards very fast.

 

Always a good idea for spare gaskets but if it comes off clean I'd reuse and double check for a leak after running. I used to put thin layer of grease on engine side of paper gaskets to help it release from engine case. If it works just change the gasket every 2 or 3 times you have cover, it will get to point of leaking especially if over tightening cover bolts.

 

Are you super stressed out for the starts? Have you tried starting from the last row instead and just working on getting a smooth start? I never raced super seriously so I enjoyed purposely starting in the back, it was less stressful to me and I had more fun passing people that way.

 

I've re-used a cover gasket many many times. I would say you can easily get 2-3 clutch changes out of them.

 

slippers and good launches can be tricky... leaving right at where peak torque is made helps. If your bike has a launch control mode... use that.

 

Local group used to attend 'Show Shine and Drag' nights at the strip to get practice. I might have to give that a try at some point. Also, some slippers feel 'odd' in the lever when launching, FYI.