Clutching change

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amazza76

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So I have researched this and came up with the following setup.

First off, the sled is a stock 2000 srx700 w/o studs...I weigh @ 250lbs geared up and my riding style could be described as aggressive trail with occasional lake blasts.

8dn-20's(which I believe are stock on my sled) with 4.5 grams in the tips and center holes
WWW primary springs
54/44 helix

Let me know your thoughts and thanks in advance.
 

I really really think your gonna overrev with a 51/43 as it is less aggressive then a strate 47 which is stock; unless it is an advantedge helix. If it is it is too steep for your srx..
 
Turk, i swear man, I would not BS you or anybody about this trail set-up. 51/43 helix in my 02 srx was spot on dead nuts and is also what is in my 01

i had that same set-up www 8dn-20's loaded, 51/43 set at 70
 
Depends on the maker of the helix. Also if you have powervalve issues you can be hitting peak rpm,s with the powervalves not opening using a less aggressive 51/43.
Using a 54/44 try the stock primary spring & weight set up 1st. The tip is allready 4.5 grams & inner should be 3.6.
 
helix is from pioneer perf out of NY. power valves were set properly

I know you mentioned before some helix are actually cut more aggressive then the same angle from another company
 
Last edited:
Turk said:
Depends on the maker of the helix. Also if you have powervalve issues you can be hitting peak rpm,s with the powervalves not opening using a less aggressive 51/43.
Using a 54/44 try the stock primary spring & weight set up 1st. The tip is allready 4.5 grams & inner should be 3.6.
Click to expand...
So you're saying change just the helix and go from there?
 
tomseal6 said:
helix is from pioneer perf out of NY. power valves were set properly

I know you mentioned before some helix are actually cut more aggressive then the same angle from another company
Click to expand...
Turk could you please explain this to me, cut more aggressive than others, is this just with multi angle helix or could a straight cut 47 differ from one company to another, to me 47 degree angle is 47 degree, if its not 47 then its not 47 its something differnt, :dunno:
 
some companies measure their angles differently. one company might measure their 48/42 helix one way and it will actually measure 48/42, but the next company might measure theirs the other way, where it measures either more aggressive or less aggressive. hard for me to explain, but i have helixs from "hi-tech", that have the same angle stamped on them, but they clearly aren't the same cut. comes from him having mulitiple machine shops making parts for him and 1 guy measuring the anlgle this way and the other guy that way. its weird i know.
 
Well Turk, you were spot on with your suggestions. This trip was the first ride with a 54/44 and wow does the sled rip...humbled a few people and made believer of others. Thanks again!
 
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