Help with suspension - Yamaha Rhino Forum - Rhino
Suspension For discussion of suspension and maintenance

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post #1 of 9 (permalink) Old 09-01-2019, 01:12 PM Thread Starter
Couch Potato
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Help with suspension

I recently bought a used 06 rhino 660 that has a lot of aftermarket parts on it and one is and a suspension setup made by shawz metal fabrication. It has fox coilovers but I only have about 12in of ground clearance. It has eibach shocks that are 14in with a spring rate of 175lbs. I'm a big guy the rhino was converted to a four seater and when I sit in it, it sags alot i want to get stiffer springs thinking 16in with about 450lbs spring rate because there seems to be alot of adjustment left in the springs has anybody used that heavy of springs.
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post #2 of 9 (permalink) Old 09-01-2019, 06:55 PM
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Welcome, when I had a 4 seat setup I ran Progressive Shocks, very stiff but worked well. You do have plenty of adjustment left, me I would run them down 2" if their set the same and see what happens. Maybe a 2" lift like CFM.

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post #3 of 9 (permalink) Old 09-02-2019, 09:03 AM Thread Starter
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I will try that when I get home thanks.
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post #4 of 9 (permalink) Old 09-02-2019, 09:08 AM
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The ground clearance is about where us should be. You may be able to go up an inch by cranking on the preload on the springs

The pic of the 175 looks to be the front. It should be 300ish in the rear on a 2 seater and 4-500 for a 4 seater in the rear. Kartek or ORW should have springs in stock for you to play with. 14ís would be fine.

Also ditch those high offset wheels. They are only negatively hurting your machine. They are also working against your suspension putting more stress on your wheel bearings and steering linkage

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post #5 of 9 (permalink) Old 09-02-2019, 11:47 AM
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If you do not plan on typically hauling a lot of folks don't spend the money for the higher rate springs until you do some testing. It might be like putting a broom stick in place of the shock which you will not like. Have someone help you measure the frame static height and the shock extended spring height, called the preload. Sit in it and measure how much it sags. Adjust the preload to zero it to static height. Then adjust preload to get it to add height where desired. Ride it and see if that is desired or too stiff. If too stiff you can go up in spring rate without the preload adjusted and get a lighter ride. But sometimes it takes just a little incremental rate to find the sweet spot. Do the above and then call Eibach with your spring numbers and ask them there opinion. If they will not help then call one of their dealers and see if you can not get some advice. It may take you more than one set of springs to achieve the height vs the ride quality desired. You will also want to play with the compression and rebound settings on your shocks to get it Tuned to your desires.

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post #6 of 9 (permalink) Old 09-03-2019, 08:51 AM
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Ya that offset wheel is hurting the suspension

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post #7 of 9 (permalink) Old 09-03-2019, 09:08 AM Thread Starter
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What offset is recommended everything on this is how I bought it i do have another set of wheels for it I'll see it they are any better
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post #8 of 9 (permalink) Old 09-03-2019, 09:10 AM Thread Starter
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Also all for springs are the the same.
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post #9 of 9 (permalink) Old 09-05-2019, 08:06 PM
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I just checked my 05 rhino. It has eibach springs on radflow shocks. The front springs say 250, and rear 400. I am happy with the ride quality so far. Hope this helps you find a good starting point.

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