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Old 01-23-2013, 08:13 PM   #11
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Don't use the bumper. Not enough strength for the spare , let along a couple of bikes and a bike rack. This is what I did late last fall. Haven't tested it yet , but it looks good.
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Old 01-23-2013, 08:15 PM   #12
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Either reinforce the bumper along with the bumper to frame mounts or mount a receiver hitch to the back of your camper. On our old Kodiak hybrid I had the bumper and the mounts reinforced, we carried 2 bikes like that for 3 years and never had any problems. My dad had a frame mounted receiver hitch on their "old" Jayco and also their new Open Range.

With that said, on our Grey Wolf I use one of the bumper mount receivers. I have not modified anything frame or bumper wise, but our Grey Wolf has a factory mounted rack on the rear that when down the weight rests on the bumper and the rack is rated at 250lbs. If the bumper can handle the rack weighing 250lbs while going down the road it should be more than up to the challenge of 2 bikes and a rack that weigh about 50lbs total.
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Old 01-23-2013, 08:18 PM   #13
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or you could use a setup like this.
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Old 01-23-2013, 08:30 PM   #14
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Originally Posted by JJnLilly View Post
Removed the tire and replaced it with a bike rack. Bikes and rack weigh less than the tire so go figure.
The reason the tire works and the bike rack does not is the location of the load from the center of the bumper. The tire's weight is located within 10 inches of the bumper centerline and the twisting torque is much less for the weight.

A bike rack puts less weight on the bumper than the tire, but it is located much further away. That twisting moment magnifies the force on the bumper. It is also located closer to the frame welds. The bumper mount receiver needs to be close to the center to keep the bikes form overhanging the sides of the camper (the worst place for that twisting force).

I discovered the twist before I lost my bumper because I could not keep my bumper caps in. They kept coming loose or falling off as the square bumper deformed.
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Old 01-24-2013, 11:01 AM   #15
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I am putting together a Yakima setup for the roof of the truck that will hold our bikes and other assorted things that might fit up there. Might look into a roof setup if you haven't already.
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Old 01-24-2013, 11:25 AM   #16
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We've probably scared the OP and he hasn't been back.

His original post doesn't indicate what 5W he has. There's a big difference in the frame/bumper of a light-weight compared to a regular 5W.

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Old 01-24-2013, 02:00 PM   #17
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People are always looking to the rear when the front of the tow vehicle works just fine if not better.
I installed a receiver on the front of my Silverado for about $190 & 30 mins of time. No drilling required.
Works great for canoe rack, bike rack or one of those flat cargo racks.
Has a 500 lb weight limit.

You just have to remember when turning that you have an extra 2+ feet in front of you.
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Old 01-24-2013, 03:48 PM   #18
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We use a Swagman rack that hangs off of the rear ladder. It holds two bikes, and they hang north-south rather than east-west on the rack. Available at Overstock.com for $55.

Swagman RV Ladder Bike Rack | Overstock.com
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Old 01-24-2013, 08:43 PM   #19
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Quote:
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We've probably scared the OP and he hasn't been back.

His original post doesn't indicate what 5W he has. There's a big difference in the frame/bumper of a light-weight compared to a regular 5W.

Dave

Ditto! whether it's an ultra-light fiver or not, will make a difference.
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Old 01-24-2013, 09:09 PM   #20
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Check the weight limit for the rear bumber, from what I remember Rockwood only haves a 150 lbs weight limit and that is not to acceed 6" inch out and away from the bumber. A bike rack that hold 4-26" standard bikes could weigh 35 lbs each could take you to the limit and one other thing, you have to add the weight of the bike rack and as mention before when they start bouncing that is a lot of stress, and if you add a bike rack to the rear bumber find a way to add safety cables, you will be held respondable for damage to other peoples property if they come off.
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