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Old 02-20-2012, 12:55 PM   #1
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Bumper Hitch

I recently purchased a 2011 Shamrock 233S. I'd like to add a bike rack to the back (or if at all possible tow a light jon boat). So, I started looking at bumper hitches that bolt on the rear bumper. While reading the reviews of a popular bumper hitch a few people have stated that the weight of four bikes was enough to break the welds of their RV's rear bumper.

Anyone have any idea if I'd be safe or know who to call to find out?

Thanks for any advice,
Larry
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Old 02-20-2012, 01:22 PM   #2
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This is not safe with your trailer - either for the people driving behind you or for your four bikes. The bumper will never support that much weight.

As an alternative, my wife and I will each have a bike and usually three kids bikes. We currently tow with them all in the trailer and they are the last things in and the first things out.

I might pull out an old Yakima roof rack for my truck this year, though. That is another idea.
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Old 02-20-2012, 01:22 PM   #3
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your Shamrock(twin of the Roo) is built on an ultra-light frame and will NOT be able to safely tow a boat.
its bumper can barely support the spare tire.

if you do some research, you'll find that putting a bike rack on the back of an ultra-light trailer, is a bad idea. the trailer has NO SHOCKS, therefore the bouncing and bending that bikes held out away from the bumper, will cause, will shortly overcome the cheap welds.
and you'll find very few who would support trying to tow a boat with it.

the only way to do it is to have a welding shop, weld and brace a 2" receiver to the frame and bumper of the trailer.
doing this mod will void the frame's warranty, though.

so, it can be done but for me, an avid bicyclist, it wasn't worth it. i decided that other alternatives were better.

listen to Triguy, he has the same trailer.

but welcome to the Forum and be sure to post in the Shamrock sub-section, under Expandables/Hybrids.
and remember the more popular Roo is an exact twin of the Shamrock. so, you'll find a lot of 233S Roo owners that can help and suggest mods.
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Old 02-20-2012, 01:25 PM   #4
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Larry,I thought you read the posts about the rear bumpers. If you dont believe the posters,I dont know any (800#) you could call for more info. Youroo!!
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Old 02-20-2012, 01:27 PM   #5
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I haven't persoanlly checked into it, but I have read several threads on here about it. Most agree not to do it for the reason you stated plus it can void your frame warranty.

I'm sure that a forum member with first hand knowledge will be able to give you some details.

Just seen I was too slow!
I see you've already recieved good advice.
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Old 02-20-2012, 01:32 PM   #6
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Thanks for the input from everyone. That is what I was afraid of...

Thanks again,
Larry
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Old 02-20-2012, 01:51 PM   #7
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Disappointing isn't it? But that's what we get with ultralights.
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Old 02-20-2012, 03:16 PM   #8
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I made one that bolts to the frame for a Flagstaff 5th wheel ultra-light to tow an ATV, but after reading the posts on frame problems, I'll probably never use it. Wayne
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Old 02-21-2012, 07:16 PM   #9
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i got a 2'' hitch from e-trailer for the front of my truck to put the bikes on, i have not tried it yet.......soon......

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