Kraton Kraton EXB Bumper Keeps Breaking?

[nyev]

I keep seeming to break the same part of my Kraton 6s EXB bumper, way too frequently.... Yes, it's due to my poor driving, but the crashes are not THAT bad or THAT frequent that it should be breaking this often.

The part that I've broken 4X in not too many runs is the plastic shock absorber, specifically, the plastic that slides in between the chassis and the diff box is getting ripped from the screws when the bumper is torqued from a crash.

It's definitely a case of rather having that part break than something upstream. But I'm wondering if there is anything I can do to not have it break quite so often, or if a different bumper might be better for me?

Wouldn't be quite as bad if I could by the plastic shock absorber part seperate from the rest of the bumper, but I don't think Arrma sells that part separately.

 

[jschlosser0405]

Fill the cavities of the shock absorber part with some RTV or even some shoe goo and let it set up completely. Will absorb the force and keep the plastic from breaking.

 

[Harriot10]

I keep seeming to break the same part of my Kraton 6s EXB bumper, way too frequently.... Yes, it's due to my poor driving, but the crashes are not THAT bad or THAT frequent that it should be breaking this often.

The part that I've broken 4X in not too many runs is the plastic shock absorber, specifically, the plastic that slides in between the chassis and the diff box is getting ripped from the screws when the bumper is torqued from a crash.

It's definitely a case of rather having that part break than something upstream. But I'm wondering if there is anything I can do to not have it break quite so often, or if a different bumper might be better for me?

Wouldn't be quite as bad if I could by the plastic shock absorber part seperate from the rest of the bumper, but I don't think Arrma sells that part separately.

Do you have a 3d printer?

 

[nyev]

Do you have a 3d printer?

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Unfortunately, no...

Fill the cavities of the shock absorber part with some RTV or even some shoe goo and let it set up completely. Will absorb the force and keep the plastic from breaking.

Unfortunately this won’t work for the part of that component that I’m breaking... it’s the thin plastic that surrounds the screws that hold the front of the diff box to the chassis that is breaking. The screws are getting yanked out of the very thin plastic. There is no room to apply any RTV / shoe goo here.

 

[jondilly1974]

Unfortunately, no...

Unfortunately this won’t work for the part of that component that I’m breaking... it’s the thin plastic that surrounds the screws that hold the front of the diff box to the chassis that is breaking. The screws are getting yanked out of the very thin plastic. There is no room to apply any RTV / shoe goo here.

Pics? I have broken the ovals in the bumper and even have two spares, but can’t be bothered with swapping them.

 

[Pat_ranch]

Fill the holes with closed cell foam, and shoe goo the sh*t out of it

 

[nyev]

I should have included photos to start with sorry! Here is the part that is breaking over and over. I can't see how shoe goowould help. The ovals and everything else has been totally fine.

 

[Pat_ranch]

I should have included photos to start with sorry! Here is the part that is breaking over and over. I can't see how shoe goowould help. The ovals and everything else has been totally fine.View attachment 151565

Lol- not at all what I was thinking! Are you missing some screws in the front?

 

[Woodley99]

I had the same problem and just purchased the Hot Racing super bash front bumber mount. It replaces the hunge pin AND the plastic piece that rips the screws out for the bumper, its the only one on the market like this that I'm aware of
https://hot-racing.com/?partnumber=AON08FFB02;c=1533

I got lucky and bought it quick here's some pics

 

[nyev]

Nope, not missing any screws. That HR part looks like the perfect solution though - if only I can find some!

 

[Hammer Down]

its the only one on the market like this that I'm aware of

Scorched makes something similar out of 7075.
https://scorchedparts.co.uk/products/billet-hinge-pin-holder-front-bumper-mount-arrma-kraton-6s-exb

 

[nyev]

Scorched makes something similar out of 7075.
https://scorchedparts.co.uk/products/billet-hinge-pin-holder-front-bumper-mount-arrma-kraton-6s-exb
View attachment 151590

Looks great, it too bad their website warns international shipments can “take many weeks”.

 

[Hammer Down]

Looks great, it too bad their website warns international shipments can “take many weeks”.

That’s definitely a bummer, just pointing out an alternative option.

 

[sanara.kenshin]

Shoe goo orhot glue works great. Still flexible to absorb bumps. No more broken bumper support.

 

[RC-Dad]

Looks great, it too bad their website warns international shipments can “take many weeks”.

I've ordered from them and both times they had my parts shipped within a day or two and I had my parts in under 2 weeks.

 

[Rcproponent]

Looks great, it too bad their website warns international shipments can “take many weeks”.

Mine was shipped to WA within 2 weeks. It’s a long wait. But way worth it… that HR piece looks nice too! I had no idea they were making parts for the EXB’s now. Awesome..

I've ordered from them and both times they had my parts shipped within a day or two and I had my parts in under 2 weeks.

yep, me too

 

[jondilly1974]

Scorched makes something similar out of 7075.
https://scorchedparts.co.uk/products/billet-hinge-pin-holder-front-bumper-mount-arrma-kraton-6s-exb
View attachment 151590

In my experience Scorched is way faster than CRCU and both came from England.

 

[Woodley99]

Scorched makes something similar out of 7075.
https://scorchedparts.co.uk/products/billet-hinge-pin-holder-front-bumper-mount-arrma-kraton-6s-exb
View attachment 151590

Wow didn't know they made that! I haven't been looking at scorched parts because of the fear if long international shipping, but 2 weeks isn't bad at all

 

[nyev]

I've ordered from them and both times they had my parts shipped within a day or two and I had my parts in under 2 weeks.

Okay, ordering now!

 

[Rcproponent]

Scorched makes something similar out of 7075.
https://scorchedparts.co.uk/products/billet-hinge-pin-holder-front-bumper-mount-arrma-kraton-6s-exb
View attachment 151590

Just because of the shipping time and shipping price I ended up buying 4 of these just because.. I’m sure I have 2-3 rigs with these bumpers so I’ll use em