Heavvvy duty suspension - Polaris ATV Forum
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post #1 of 13 (permalink) Old 05-07-2019, 02:01 PM Thread Starter
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Heavvvy duty suspension

Hey guys. I did a search on here and couldnít find anything past the factory style heavy duty spring setups. My scrambler 400 4x4 is my main trail rider now. Often times my wife is on the back too. Iím almost 300lbs myself, sheís another 140 or so. We also have the big rear seat cargo box now. Iím sure getting my factory Fox shock rebuilt would help, but for the cost of rebuilding and even re-valving, I could get different suspension. Iím not sure the factory setup could be upgraded enough to handle the weight anyway. Iíve been looking at the idea of a RZR shock swap. Theyíre designed to hold up much more weight. Iíve had trouble finding specific dimensions on RZR shocks. Has anybody heard of or done this? If not, could I trouble you RZR guys to take some measurements? Preferably 1000s, 4 doors, turbos, etc... basically the heaviest RZR models as I only have one rear shock not 2


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post #2 of 13 (permalink) Old 05-14-2019, 11:32 AM Thread Starter
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post #3 of 13 (permalink) Old 05-21-2019, 04:37 PM Thread Starter
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post #4 of 13 (permalink) Old 05-22-2019, 05:58 AM
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The owners manual warns never to operate with a passenger and a cargo box only exacerbates the problem.

But it's your wife and she's your responsibility.

Best to send the shock to a suspension specialist (like ProAction Suspension) - have them rebuild, valve and spring the shock for the weight & riding conditions - it will probably cost less than a used shock that might or might not be suitable.

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post #5 of 13 (permalink) Old 05-22-2019, 06:51 AM
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Personally, I think you're just throwing good money after bad and NOTHING you do to the machine you have now is going to actually make it suitable or safe for you and your wife. The way I see it you only have two REAL choices.
1) Get your wife her own machine to ride.
Or...
2) Get a two-up machine that's designed to carry two people.

Anything other than one of the solutions above is a waste of time, money and effort.
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post #6 of 13 (permalink) Old 05-22-2019, 07:00 AM Thread Starter
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The owners manual warns never to operate with a passenger and a cargo box only exacerbates the problem.



But it's your wife and she's your responsibility.



Best to send the shock to a suspension specialist (like ProAction Suspension) - have them rebuild, valve and spring the shock for the weight & riding conditions - it will probably cost less than a used shock that might or might not be suitable.

Okay so the owners manual says that because the stock shocks/springs arenít set up for that weight. If you get or have some set up for it, itís fine.

I have already checked into having my factory fox shocks rebuilt for this purpose and itís substantially more expensive than a used shock that already has a higher spring rate like I need.



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post #7 of 13 (permalink) Old 05-22-2019, 07:05 AM Thread Starter
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Originally Posted by polman500 View Post
Personally, I think you're just throwing good money after bad and NOTHING you do to the machine you have now is going to actually make it suitable or safe for you and your wife. The way I see it you only have two REAL choices.

1) Get your wife her own machine to ride.

Or...

2) Get a two-up machine that's designed to carry two people.



Anything other than one of the solutions above is a waste of time, money and effort.

Getting or setting up the suspension to handle the weight will make it suitable. The main difference between a quad thatís designed for 2 up and one thatís not, is the spring rates. As far as your opinion on my only two options.. my wife does not want her own quad to ride. That was actually what I bought the Scrambler for because I already have a banshee. Turns out she doesnít like driving she just wants to ride. Getting a different quad thatís designed for two up is obviously much much more expensive than up fitting my current quad. Just because youíre scared to upgrade your quad doesnít mean itís a waste of time, money and effort. Itís actually the opposite if done correctly


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post #8 of 13 (permalink) Old 05-22-2019, 07:16 AM
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Quote:
Originally Posted by Chillin_Dylan View Post
Quote:
Originally Posted by polman500 View Post
Personally, I think you're just throwing good money after bad and NOTHING you do to the machine you have now is going to actually make it suitable or safe for you and your wife. The way I see it you only have two REAL choices.

1) Get your wife her own machine to ride.

Or...

2) Get a two-up machine that's designed to carry two people.



Anything other than one of the solutions above is a waste of time, money and effort.

Getting or setting up the suspension to handle the weight will make it suitable. The main difference between a quad thatís designed for 2 up and one thatís not, is the spring rates. As far as your opinion on my only two options.. my wife does not want her own quad to ride. That was actually what I bought the Scrambler for because I already have a banshee. Turns out she doesnít like driving she just wants to ride. Getting a different quad thatís designed for two up is obviously much much more expensive than up fitting my current quad. Just because youíre scared to upgrade your quad doesnít mean itís a waste of time, money and effort. Itís actually the opposite if done correctly


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That statement is dangerously out in left field, and not even close to the truth. You can do what you want, or believe what you want, but don't endanger others who may read your posts and think that is true.
There is a big difference between scared to upgrade a machine and being smart about upgrading a machine. Thinking it's safe to carry your wife two up on your scrambler by simply upgrading your rear shock is definitely not being smart.

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post #9 of 13 (permalink) Old 05-22-2019, 08:11 AM
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Quote:
Originally Posted by Chillin_Dylan View Post
Quote:
Originally Posted by polman500 View Post
Personally, I think you're just throwing good money after bad and NOTHING you do to the machine you have now is going to actually make it suitable or safe for you and your wife. The way I see it you only have two REAL choices.

1) Get your wife her own machine to ride.

Or...

2) Get a two-up machine that's designed to carry two people.



Anything other than one of the solutions above is a waste of time, money and effort.

Getting or setting up the suspension to handle the weight will make it suitable. The main difference between a quad thatís designed for 2 up and one thatís not, is the spring rates. As far as your opinion on my only two options.. my wife does not want her own quad to ride. That was actually what I bought the Scrambler for because I already have a banshee. Turns out she doesnít like driving she just wants to ride. Getting a different quad thatís designed for two up is obviously much much more expensive than up fitting my current quad. Just because youíre scared to upgrade your quad doesnít mean itís a waste of time, money and effort. Itís actually the opposite if done correctly


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LOL... You couldn't be any more wrong about the differences in a two-up machine and your Scrambler! That statement alone shows how little you actually know about the subject.
If your two machines are in pretty good shape you could probably take BOTH single seat machines and trade up to a machine that would be very safe for you and your wife to comfortably ride together. It don't matter how much modifying you do to that Scrambler's suspension you can't make it comfortable, suitable or safe for two people to ride. As far as modifying machines, I've probably done more mods to more machines than you've ever even seen in your lifetime. There's two or three passengers killed or seriously injured just around my local area every year because of guys doing what you are trying to do. My experience and common sense tells me I can't make a silk purse out of a sow's ear no matter how hard I try.
If you don't care any more about your wife's well being than that and she doesn't know any better than to climb on behind you and take the risk of serious injury or death I guess I'm wasting my time trying to tell you otherwise.
Good luck!
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post #10 of 13 (permalink) Old 05-22-2019, 11:22 AM
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The main difference between a quad thatís designed for 2 up and one thatís not, is the spring rates.
The length of a touring model and the suspension, make it safer to carry a passenger.

Your Scrambler is made to support and transport 365 lbs of which 100 can be on the rear rack and 70 on the front rack. Can it do more? likely but it is not rated for it.

You are trying to run 75-100lbs overweight with that weight in the wrong location. It is an accident or breakage waiting to happen regardless of what shock you put on.

The recommendation of trade both machines is good advice.

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