star suspension xtx ???

[yamaha06]

I also have my torsion springs set to soft, I am going to try to play around with the centre shock pre load a bit more, right now I have mine 4 full turns from fully tight as thats where Robert said I could start since I am about 190 pounds with riding gear. Are you guys running your tracks as tight as the yamaha spec? Thats what star recommends but I haven't tried my track that tight as I am worried about the slider wear, I know this kit has moved the one idler wheel back a little so maybe it wont be as bad.

I run mine more or less to Yamaha spec ( I use Yamaha spec with 20lbs vice 22lbs just because of ease)...The only place I get slider wear is on the front curve (I have excel wheels). I just put new sliders on (regular not DuPont) and did over 200km yesterday and they still look like new...I was expecting to see the front curve section worn down but no signs of wear....

Ya I am not running the excel wheels or anything to help with slider wear, might have to look into that, I have read about people using polaris wheels to. I will try tightening my track a bit and see if I notice a difference. When you tighten the pre load for the centre shock with the star kit what are you actually accomplishing?

 

[sloan188]

I also have my torsion springs set to soft, I am going to try to play around with the centre shock pre load a bit more, right now I have mine 4 full turns from fully tight as thats where Robert said I could start since I am about 190 pounds with riding gear. Are you guys running your tracks as tight as the yamaha spec? Thats what star recommends but I haven't tried my track that tight as I am worried about the slider wear, I know this kit has moved the one idler wheel back a little so maybe it wont be as bad.

I run mine more or less to Yamaha spec ( I use Yamaha spec with 20lbs vice 22lbs just because of ease)...The only place I get slider wear is on the front curve (I have excel wheels). I just put new sliders on (regular not DuPont) and did over 200km yesterday and they still look like new...I was expecting to see the front curve section worn down but no signs of wear....

Ya I am not running the excel wheels or anything to help with slider wear, might have to look into that, I have read about people using polaris wheels to. I will try tightening my track a bit and see if I notice a difference. When you tighten the pre load for the centre shock with the star kit what are you actually accomplishing?

I've heard that Polaris wheels will work...some of the wheels (not sure exactly which ones) need 12mm vice 15mm bearing depths in order to work. I found out that during my star kit install wherein I couldn't get the front shock cross piece mounted because I had aftermarket wheels (only ones that were non-excel and have since been upgraded). The spacers (included in the star kit) plus aftermarket wheels left me 6mm too long. I called Robert at star and he knew immediately what the problem was. I changed the wheels to excel and all was good.

I'm no expert so can't say for sure what the increased front track shock preload is supposed to do but I suspect that it is trying to minimize compression allowing the star swing arm to work its magic.

 

[pay2play]

I talked to Robert about the center shock preload and he explained it to me this way. The center shock spring is too weak, which is why he suggested I upgrade to a stiffer spring. He suggests adding preload to the center shock and reducing the front suspension spring tension lowering it as much as possible. Robert admits this may go against normal suspension settings since you might want to lower the center shock and add spring tension to the front shock springs to avoid ski lift, but, by doing it his way, he has tested it and it reduces push in corners by having the rear suspension weight forward rather than back. I'm still trying to get my suspension to work this way. He said it is more difficult on the Nytro than the Apex XTX. Robert said a good starting point for threads showing on the center shock is about 25mm and go higher from there.