Either you don't have to buy your own or you aint too bright buddy!
That's about 35 more stock a-arms than I would pay for
Don't take that too hard, I just couldn't resist
2011 PRO A ARMS BENT
- Thread starter RACER212
- Start date
Either you don't have to buy your own or you aint too bright buddy!
That's about 35 more stock a-arms than I would pay for Don't take that too hard, I just couldn't resistthats all i was wondering if i was the only one that have bent arms without hitting anything you would have thought could possibly bend them i am running this sled in a stock class so i cant change them to aftermarket (in my case) just tring to figure out if there is a problem thats alllllllllll
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SSWIM
Well-known member
I hit several down trees and a few rocks. I thought I bent an arm on one of them. It did not. I was surprised it did not. It was a pleasant surprise. Anyway, Mine held up better than I thought they would. Especially taking into account I seem to bend at least 5-6 arms a season.
Sam
Sam
The arms are engineered to bend before the bulkhead. I'm sure there's a fine line that the design engineers have to walk. Personally I'd rather carry an extra set of arms in the truck than risk a toasted bulkhead.
I have all my stock arms on my 09 dragon with no issues.I never go early until there is a good base.Sounds like polaris may have lighten the arms up on the pro to save weight.If anyone has a dragon arm and a pro together they should weigh them and see if the tubing is thinner.Hope its not the skidoo hitting the pinecone senario over light weight again.You should not have to invest in $500 worth of aftermarket a arms after dropping 14K cdn on a new sled
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tukernater
Well-known member
WELCOME TO THE LIGHT WEIGHT WORLD
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TheGuyX
Member
2011 RMK Pro. After a pretty lame day of riding the left front A-Arm was bent. Bottom Rear a-Arm was bent downward. No significant impacts of any kind other than usual day of Riding on Boulder in Revelstoke. This is a brand new sled that had 100 k on it. In three rides the Left A-Arm is being replaced twice. Both A-Arms bent in the exact same spot. I would be seriously looking at a warranty issue with this Sled. I've hit so much crap with my previous Doo that if I had the same A-Arms on my Doo's I would be broke fixing them. My 2 cents worth.
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Third ride today and I also have a bent lower left a-arm. I've hit a few rocks and everything I hit I didn't feel should have bent the a-arm. I'm more mad that it may cost me $500 extra to have something on my sled that I just payed over $10 grand on. Thats my only complaint though outside of the a-arm this sled is sick.!!!!
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barry1me
Well-known member
Third ride today and I also have a bent lower left a-arm. I've hit a few rocks and everything I hit I didn't feel should have bent the a-arm. I'm more mad that it may cost me $500 extra to have something on my sled that I just payed over $10 grand on. Thats my only complaint though outside of the a-arm this sled is sick.!!!!
The Pro does look like a nice sled....I will be considering this sled next year. Hopefully Polaris will stiffen up the A arms for 2012.
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ak49er
Well-known member
The wife and I went through five a-arms in two months in 2008, after buying all the a-arms from every part house in the area, I did have enough.
A few scrap pieces of UHMW and some hose clamps, and we have not lost another a-arm, hit plenty of rocks and stumps, even an old trailer in Petersville but no lost a-arms.
I am of the opinion the damage comes to the lower rear most arm, as it gets hooked on whatever the first tube passed over. Fully compress your front end and look at how low that rear tube is now below the front tube.....
My IQ solution fit alright on the new PROS, but I am redoing them tomorrow, for a better fit, they make look cheesy, but I am not wanting to wait out one single weekend in the winter for another a-arm.
A few scrap pieces of UHMW and some hose clamps, and we have not lost another a-arm, hit plenty of rocks and stumps, even an old trailer in Petersville but no lost a-arms.
I am of the opinion the damage comes to the lower rear most arm, as it gets hooked on whatever the first tube passed over. Fully compress your front end and look at how low that rear tube is now below the front tube.....
My IQ solution fit alright on the new PROS, but I am redoing them tomorrow, for a better fit, they make look cheesy, but I am not wanting to wait out one single weekend in the winter for another a-arm.
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I am wondering whether Polaris even tested the Pro X on the rough trails. And if so, what was there frequency of A-arm failures. Assuming they were bending them too, then why did they not change the design?
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ak49er
Well-known member
The wife and I went trough five a-arms in two months in 2008, after buying all the a-arms form every part house in the area, I did have enough.
A few scrap pieces of UHMW and some hose clamps, and we have not lost another a-arm, hit plenty of rocks and stumps, even an old trailer in Petersville but no lost a-arms.
I am of the opinion the damage comes to the lower rear most arm, as it gets hooked on whatever the first tube passed over. Fully compress you front end and look at how low that rear tube is now below the front tube.....
These fit alright on the new PROS, but I am redoing them tomorrow, for a better fit, they make look cheesy, but I am not wanting to wait out one single weekend in the winter for another a-arm.
A few scrap pieces of UHMW and some hose clamps, and we have not lost another a-arm, hit plenty of rocks and stumps, even an old trailer in Petersville but no lost a-arms.
I am of the opinion the damage comes to the lower rear most arm, as it gets hooked on whatever the first tube passed over. Fully compress you front end and look at how low that rear tube is now below the front tube.....
These fit alright on the new PROS, but I am redoing them tomorrow, for a better fit, they make look cheesy, but I am not wanting to wait out one single weekend in the winter for another a-arm.
My theory is the ski hits something under the snow and moves the ski tip upward, bending the rear tube downward by twisting it rather than blunt force bending. There is little suspension movement in that case and all of the force transfers to that point. Mine bend there almost everytime. They need to come up with a new design. I think the weak link is the bend just after the shock mount. I think Holz has the same problem. I've bent plenty of those as well. I only bend 1 stocker before I go aftermarket!
The A-arms are designed to fail so worse damage is not caused to the bulkhead and the rider isn't hurt. They are designed to fail at the rear tube on the A-arm so that the front part is till connected to the spindle allowing you to drag to a stop, rather than buckeling or fracturing the front tube turning you into a lawn dart. If your ski smokes something, the rear tube should always bend/buckle/fold before the front tube unless the front tube takes a direct hit.
