Thought I would bring this thread back since everyone must have it figured out by now...lol
For anyone that actually has a STOCK sidewinder who's clutch kit are you using?
I still have my thunder products kit and seems to work well
Thunder products big venom kit
Thunder products orange secondary spring 2-3
33/35 helix
XS825 belt
A stock SW must have a stock clutch set up to be stock !




When I had the Yamaha clutching update done to my 17 , which I believe was the helix and arms , it made a noticeable difference in spooling up .That was the case for 2 weeks , until I decided to get the 240 tune , which upped the bar even more .
I haven't ridden it this year , but prior to this year , I have only used 5 belts for 16,000 klms .
I blew one belt riding high revs across a lake for a half hour in 2 feet of fluffy snow . Not smart on my part .
I blew one belt with large klms. on it ,just to see how long it would last .
I still have the other 3 belts as spares !
That's pretty amazing , in my books , but I am a spoiled long time RX-1/Apex owner from 2003 to 2017, that has a bunch of partly worn 8DN belts laying around , waiting to be called to duty , as 2nd choice back ups .
Based on my history I have never hesitated to buy a first year release from anyone, and will continue that trend !
That's coming from a guy who bought a 2005 Mach 1000 , and got real lucky , with 2 years of unbelievable speed and handling , and just happened to sell it a month before it blew up !!
As much as the 8JP belt is plenty good for at least a stock winder , it is a dust monster ,and when you have a white cowling (SRX 22) , that is enough reason to switch to the XS 825 , if you are willing to make the necessary weight changes , if you want to maintain the peak rpm .
Whatever version of a Sidewinder you may choose to ride , it is an amazing sled , when set up properly !