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Old 06-04-2011, 03:17 PM   #2
Festus2
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Join Date: Mar 2009
Location: Fraser Valley BC Canada
Posts: 7,015
I think that the majority of RVers today steer away from mounting storage and bike racks directly to their rear bumper and have gone to using, as you have already noted, a trailer hitch or some other frame mounting configuration. The reason is quite simple. The bumpers found on today's RV's are simply not strong enough to support anything more than a spare tire or a small bike rack (not both). You still see some RVers with storage boxes and other stuff mounted on the bumper but the best and safest way to go is to use the frame - trailer hitch or an extended, welded support system.
There is a lot of bounce back there on the bumper and I wouldn't add any extra weight to it.
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