The rear suspensions sags on its own weight pretty bad. Does a stiffer spring help or are my shocks bad? It is on a 2007 RMK 600, no Walker Evans just the standard shocks. Thanks.
Rear suspension sag
- Thread starter Team X-treme
- Start date
T
Replace the stock springs with "fat boy" springs. They are way to light of a spring from the factory.
^^Agreed, this is something Polaris needs to address, install the .405's in at the factory, way better all-around performance with these on.
N
where do you get these "fatboy" springs ? my 07 d7 has a wicked sag problem
Polaris designs some sag into the suspension. The correct way to determine if you need stiffer springs is to measure sag with the rider on the sled using the measurement from your owners manual for your model sled.
Springs not shocks control sag!
the correct way to measure sag is..................
put the sled on a flat surface.
Lift the back end up and measure from the end of the tunnel to the ground.
Get on the sled, hop up and down 3 times then sit on the sled.
Measure the distance (with you sitting on it) from the end of the tunnel to the ground.
You should be around 5" of sag.
I had to install the factory large spring on mine to get this amount of sag.
The stock factory springs gave me about 11" of sag.
put the sled on a flat surface.
Lift the back end up and measure from the end of the tunnel to the ground.
Get on the sled, hop up and down 3 times then sit on the sled.
Measure the distance (with you sitting on it) from the end of the tunnel to the ground.
You should be around 5" of sag.
I had to install the factory large spring on mine to get this amount of sag.
The stock factory springs gave me about 11" of sag.
T
I bought my "fat boy" springs from the Polaris dealer when I bought my sled. Is there aftermarket companies that also make "fat boy" springs out there too? I'm wondering if you could call an after market company, tell them what sled you are riding and your weight. That way they could sell you the right spring rate spring.
N
which spring are we talking about the one around the shock or the two on the sides?
T
The two on the sides.... They control sag, not the shock it's self.....
N
thanks
M
suspension springs
I have a 06 600 rmk 151 and I weigh about 230 all suited up. I see the stock springs are .359 and they show a .375 in the parts as an optional part. Do they make some .405's? Is this what to go to to stiffen it up? I think going to a longer track makes the problem worse.
I have a 06 600 rmk 151 and I weigh about 230 all suited up. I see the stock springs are .359 and they show a .375 in the parts as an optional part. Do they make some .405's? Is this what to go to to stiffen it up? I think going to a longer track makes the problem worse.
M
sag......
So if the sag is close I should probably just go with the .375's. I'll do a little more measureing with the close rider weight(backpack, shovel, etc.) and then have an idea how stiff to go....Maybe the .375's will be enough......
So if the sag is close I should probably just go with the .375's. I'll do a little more measureing with the close rider weight(backpack, shovel, etc.) and then have an idea how stiff to go....Maybe the .375's will be enough......
H
I would strongly reccomend going with the .405. We tried using both the .375 and .405 and I wouldnt waist my time with the .375 they are not enough. I am 200# all ready to ride. Thats just my opinion. I have been riding them on my sleds since 04 and I have never bent a rail or had a problem. On my 05 IQ race chassis i run the rail brace to keep it strong.
J
lots of good info...
thats something I have never thought about, thanks!
thats something I have never thought about, thanks!
M
Im also 230 all suited well maybe 250 lol. I ride an 06 600 ho and it sags bad. My factory is .347 with an 80 degree bend. My book is telling me the bigger springs are .359 80*????. Thats not much more can i go with a wider spring per say .375 or .405 and could i maybe go to a 90*instead of 80*
I have a extra set of .405 x 77 degrees for sale if anyone is interested. $110 plus shipping. They are new in boxes.
so this maybe a dumb question but why dose polaris put the sag in the suspention to begin with?
M
wouldnt the 77 degree create more sag then a 80* i know its not much but im fairly new to this stuff?
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