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Arm breakage

Old 11-07-2023, 08:22 AM
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Default Arm breakage

Hey guys I have a question about front arms on 1/8 off-road
i have an issue with breaking my right front arm on my buggy ! I know the biggest problem is my driving skills but was wondering if anyone actually boils their nylon parts before using or is there any product that will possibly prolong life of my parts ?
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Old 11-07-2023, 01:37 PM
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Nope. Might swap to a softer plastic arm in cold weather. Stiffer carbon in the summer.
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Old 11-08-2023, 06:56 AM
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Consider switching to a different brand of car, one of the main reasons I run brands with C-Hubs is improved durability around the arms. You don't have to share what brand of car you're running but I would be willing to bet it's a pivot ball if you're breaking frequently enough for this to be an issue.

There are some brands that offer universal arms that can be ran on the right or left side so you're not stuck with a bunch a left arms, ha!
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Old 11-08-2023, 09:44 PM
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It's a trade off. C hubs and it's knuckles are weaker than the upright on a pivotball car.
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Old 11-09-2023, 04:48 AM
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Nylon is “hygroscopic,” which means it absorbs moisture.
The greater the amount of absorbed water in the plastic, the more flexible (and thus, more durable) it becomes.


Boiling will only benefit nylon and nylon blends.
Other types of plastics will either be unaffected, or may warp or shrink.
https://www.rccaraction.com/how-to-b...astic-parts-x/
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Old 11-09-2023, 05:25 AM
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Most plastics take up water, problem today is that for sure plastics from competition models contains carbon and carbon will not be affected by water.
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Old 11-09-2023, 07:54 AM
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This conversation reminds me of the Kyosho Triumph. Great car, but the front arms were practically designed to break. They sucked so bad! I ended up making my own out of fiberglass.
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Old 11-13-2023, 08:29 AM
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Originally Posted by OffRoadJunkie
This conversation reminds me of the Kyosho Triumph. Great car, but the front arms were practically designed to break. They sucked so bad! I ended up making my own out of fiberglass.
I remember the Triumph. It was a good buggy and you’re correct about the arms. They didn’t have much to them, basically no structural support.
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Old 11-13-2023, 10:07 AM
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Associated used to use really ugly white plastic. The primary reason to boil it was to try to dye it black. Best we ever got, was grayish.

Some said it helped durability. I doubt it.
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Old 11-13-2023, 10:27 AM
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Originally Posted by petersen114
I remember the Triumph. It was a good buggy and you’re correct about the arms. They didn’t have much to them, basically no structural support.

I also didn't care for the belt drive gearbox. I was told the Pro-X gearbox bolted right onto the Triumph, but I never got a chance to try it.
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Old 11-13-2023, 01:09 PM
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Originally Posted by Zerodefect
Associated used to use really ugly white plastic. The primary reason to boil it was to try to dye it black. Best we ever got, was grayish.

Some said it helped durability. I doubt it.
Mine came out black. I liked the fluorescent yellow.
It was nylon and it did help durability, made it less brittle.
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Old 11-14-2023, 08:29 AM
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I have an HB and have never broken a front arm and I'm surely not the best driver wherever we race.
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Old 11-16-2023, 01:35 PM
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Originally Posted by Zerodefect
Associated used to use really ugly white plastic. The primary reason to boil it was to try to dye it black. Best we ever got, was grayish.

Some said it helped durability. I doubt it.
Originally Posted by OffRoadJunkie
I also didn't care for the belt drive gearbox. I was told the Pro-X gearbox bolted right onto the Triumph, but I never got a chance to try it.
Not to mention the cover on the bottom of the chassis to view the belts would easily come off on landings.
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Old 11-16-2023, 02:01 PM
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Originally Posted by petersen114
Not to mention the cover on the bottom of the chassis to view the belts would easily come off on landings.

It came off once and I never put it back on. That's when I put a chassis protector over the hole.
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Old 11-23-2023, 02:01 PM
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Originally Posted by Fast4Fun
Hey guys I have a question about front arms on 1/8 off-road
i have an issue with breaking my right front arm on my buggy ! I know the biggest problem is my driving skills but was wondering if anyone actually boils their nylon parts before using or is there any product that will possibly prolong life of my parts ?

Brand?
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