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Old 12-05-2017, 09:48 AM   #1
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Rear Bumper Storage

I have been told that the rear bumper on my RV will hold about 300 lbs. And now for a winter project I want to put a small platform to hold my 100 lb generator. Has anyone done this, does anyone know of any plans for this?

I know that they make reese hitch recivers that will bolt on the a 4" squ bumper and thinking I would look into this. Any and all thougths and ideas are most appriecated.

Tom and Kathy
North Ga
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Old 12-05-2017, 10:17 AM   #2
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I'm no expert on this topic...however, there has been lots of discussion on 'bumpers' and what they can hold and can not hold .

By any chance was it the sales person that said 'it would hold about 300 lbs' ?

I don't know your RV type or bumper type, perhaps a picture would help here.
If it is the common 4" square steel tube welded on to the frame it may hold the weight you are asking for if it was a direct top load with no cantilever outward load.
A cantilevered load would put excessive stress on the weld points. It probably would not be the welds that fail but the thin walled steel of the bumper would tear away (at the weld points) under load when it is bouncing down the road.
This is seen all to often when Bike Racks are bolted to the bumper.
The weight of the bikes is not a lot of weight but it is enough when they bounce and jiggle going down the road causing stress as I described above.
The force created puts a 'twist' onto the bumper and then often fails.

Perhaps a trailer hitch welded to the frame would be better than a bolt on.

hope this helps

Islander
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Old 12-05-2017, 03:30 PM   #3
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Quote:
Originally Posted by Slow but Steady View Post
I have been told that the rear bumper on my RV will hold about 300 lbs. And now for a winter project I want to put a small platform to hold my 100 lb generator. Has anyone done this, does anyone know of any plans for this?

I know that they make reese hitch recivers that will bolt on the a 4" squ bumper and thinking I would look into this. Any and all thougths and ideas are most appriecated.

Tom and Kathy
North Ga
You need to post make and model of RV, since it's not listed in your profile.

If it's an ultralight trailer, the bumper is made of thin metal and weak welds.
Most have some kind of warning statement stating that modifying the bumper will possibly void the warranty.

A non-ultralight or motorhome will usually have a much stronger bumper that may be able to handle it.

But without knowing what kind of RV you have, it's hard to advise you.
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Old 12-05-2017, 03:35 PM   #4
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Here is a search of the site on rear bumper racks.
You'll have days worth of 'slow but steady' reading.

Rear Bumper Rack - Forest River.
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Old 12-05-2017, 03:37 PM   #5
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Short answer is, "If it did not come from the factory with it on; don't do it."

However, there are aftermarket bolt on supports which will aid in bumper retention when the welds fail.
https://www.amazon.com/SafetyStruts-.../dp/B00JASCNEE
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Old 12-06-2017, 09:06 AM   #6
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rear bumper

I mounted a reciever hitch on my Cherokee for a bike rack.



It didn't take long for the bumper to start tearing from the frame. Haven't had a problem since adding bracing.

1/4" strap over top of frame and bumper.





Brace from frame to bumper.






C.B.
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Old 12-06-2017, 09:24 AM   #7
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On my Crusader I had my bumper taken off and re-welded back on by a steel and welding shop. They also added 1/4 inch angle iron and welded that from the frame to the bottom of the bumper. I only have a bike rack on my bumper and haven't had any issues the last 9 months its been like that.
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Old 12-06-2017, 02:14 PM   #8
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Quote:
Originally Posted by Brendon37 View Post
On my Crusader I had my bumper taken off and re-welded back on by a steel and welding shop. They also added 1/4 inch angle iron and welded that from the frame to the bottom of the bumper. I only have a bike rack on my bumper and haven't had any issues the last 9 months its been like that.
Please make sure you inspect the frame at the rear axle attachment points.

Beefing up the frame to bumper for a bike rack will just transfer that torque load to the rear axle frame welds.
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Old 12-06-2017, 04:58 PM   #9
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When I am traveling behind any camper with bikes or such on the rear bumper, I make it a point to get in front of them as soon as humanly possible. I don't want someones Schwinn tearing the radiator out of my car.

Tim
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Old 12-07-2017, 04:32 PM   #10
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You're receiving good advice.
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