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Old 08-26-2015, 10:38 AM   #1
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Bike Rack On Bumper With Double Beams

I realize this has been addressed numerous times. I know, I know, everyone says to not mount a hitch on your rear bumper with a bike rack because a bouncing bike rack can break the welds if it's not reinforced. But my rear bumper on my Avenger has doubled up beams supporting the bumper on each side. A lot of trailers only have single beams supporting the bumper. My bumper seems like it's a lot more beefed up and is already supporting a spare tire. I was thinking of removing the tire and replacing it with the bike rack. I have included a picture here. Thoughts? Sorry the picture uploaded upside down but you get the idea.
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Old 08-26-2015, 10:40 AM   #2
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Be a ware you will void your warranty by mounting a bike rack to your tt if your warranty has not expired. Later RJD
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Old 08-26-2015, 10:41 AM   #3
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Manufacturer told me that the warranty is already expired as its only for one year. I purchased this 2014 trailer used.
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Old 08-26-2015, 11:00 AM   #4
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How thick is the metal the bumper is made of? How far does the double beam extend under the trailer?
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Old 08-26-2015, 11:36 AM   #5
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I am a proponent of adding bumper hitches to TT responsibly. Please take into account the load you are putting on the bumper, any additional load-bearing brackets that you may add, and watch carefully for problems anytime you tow. I took off the factory mounted spare tire and bracket. I also have this mounted close to the right side closer to the bumper support.

I added to my Shamrock 183 brackets to help support the bumper (and help compensate for rotational torque from the bike carrier) from

Mount-n-Lock™ Camper & RV Bumpers, Cargo Carrier Trays and Accessories

to give me a little more strength. I added the Swagman hitch from etrailer.com which features a bolt on the side to help control bounce of the inserted hitch.

I then designed and with the help of a friend that could weld aluminum, built a custom bike rack out of aluminum and stainless. It weighs less then 20#. The stainless tube is inserted into the hitch. The tube is bolted to an aluminum rack that supports the wheels of my bike. It is very stable riding down the road and does not bounce by itself, unless the whole rear of the trailer bounces. My bike and carrier weighs about 45# total.

The attached pictures I just took... the uneven black paint near the welds is the result of spray painting black-rubberized paint in those areas to keep ahead of rust, although in one shot it looks like the weld is cracking... it is NOT...

This was my way of dealing with adding a bike rack to my HTT, and I hope it gives you an idea of what might work for you.
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Old 08-26-2015, 11:57 AM   #6
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One beam is cut short and bolted to the side of the frame. The other beam extends underneath. The bumper is a standard 4" square.
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Old 08-26-2015, 12:05 PM   #7
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I have a bolt on curt hitch I already purchased and a bike rack that holds four bikes. I would only use it for two though.
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Old 08-26-2015, 01:06 PM   #8
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Be advised that most bike racks warn that they are not designed for use behind a trailer. This is because of the bouncing, the welds on the rack may break. There are a few racks designed to withstand the stress, I find they all cost over $150.00.
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Old 08-26-2015, 01:55 PM   #9
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I have a Yakima bike rack. It's at least 9 years old. It won't break. The trailer bumper is more of a concern.
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Old 08-26-2015, 02:06 PM   #10
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Do yourself a favor. Get a front hitch. I did. Not only does it bring the bikes along it helps me tremendously to reposition the trailer in my side yard location.
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