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Flapper's avatar
Flapper
Explorer
Apr 30, 2015

Bike Rack receiver wiggle

On my Fifth, we had the factory install a hitch, specifically for a bike rack (I already knew from the forums, bumpers were suspect!). After going through all the brands, found that Swagman was about the only game for trailer rated racks.

Leaving in about 3 days, and was finally able to get my new rack (Swagman XC) and the Fifth in the same place. The Swagman is the one that comes with an adaptor for bumper mounting, if desired. No, I didn't use it.

Turns out the receiver is under and behind the bumper. In this configuration, bikes are hitting the rear window of the fifth. So off I went to get a 6" receiver extension.

That gives me good clearance. But, if I lift the whole assembly fast and hard, to simulate going over a bump, there is a pretty large amount of up/down play. I cannot get the handlebars to be less than about 2" from the window, so I'm hoping there won't be any really big bumps in my future. The play seems to be due to the looseness of the rack tube going into the extension, and then additional from the extension into the receiver.

Any suggestions on how to stiffen everything up so there isn't much play? Or am I worrying unnecessarily?
  • I cut sheet metal strips longer than receiver and bent ends to keep them in place. Just added shims till everything nice and snug. Used them for over 10,000 miles. Finally got around to welding beads on Swagman and grinding for tight fit.
  • Probably better off drilling from the top as all of the weight will be on the bolt of you drill from the bottom.
  • newlee wrote:
    Probably better off drilling from the top as all of the weight will be on the bolt of you drill from the bottom.


    Was thinking about that. In theory, bolt will be on the trailer side of the pin, which sort of acts as a sloppy pivot point. So while the rack hangs down a bit, the end of the extension inside the receiver would be up. Bolt would keep it up, preventing it from pivoting down (and the rack up). But, will see what's really going on first - may be enough slop that my theory doesn't hold up, and then coming in from the top would be better. Maybe even two - top and bottom, forward and back from the pin!

    Two auto parts stores, and a web search/call to a trailer parts place 15 miles away gave nothing even close. Guess it will be drill time, after I mow....
  • I assume you turned the handle bars ninety degrees for a better clearance.
  • Deed is done, theory worked out! Very solid with one bolt.

    Turning the bars? Well, not what I purchased a rack for, needing to readjust a pretty well tuned bike every time I take it off the rack (will use this for non-RV biking also). These are better bikes, and while not hard, is not as easy as a simple allen wrench, either.

    More importantly it was all about the bounce. Slamming up and down for 1,000's of miles just has to lead to stress failure of something. Now that it is all clamped, the ride in the back should be much smoother. And clearance from bars to window is excellent, and should stay that way!
  • LarryJM wrote:
    IAMICHABOD wrote:
    I have tried almost every Anti Rattle device on the market, most have been no good or so complicated and cumbersome that they are useless.

    Until I found the one at Hitch Rider. This will keep everything tight.

    Their Hitch Vice is the best and easiest one I have come across and it really works.


    I concur, I have been using the Hitch Vice now for close to 7 years and some 10K miles and it "JUST WORKS".

    Nuff said:W

    Larry


    Flapper I know you have come up with what you feel is a solution, but I have tried everything written in these posts when I had a rear mounted bike rack and they all eventually failed EXCEPT the Hitch Vise mentioned above^^^. There is a lot of bounce and the Hitch Vise was rock solid. I had enough issues with a rear mounted rack that I will avoid ever using one again but if I was forced to use one again it would be with a Hitch Vise.
  • We made it from Minn, and are now in Gulf State Park in AL. Just got done with a nice ride to view wild gators! Bolt solution has been rock solid so far. So the quick solution seems to be working. That said, I will be ordering a Hitch-Vise timed to arrive just after we get home. If for no other reason, it's portable between hitches, so I can use the rack on the truck when not camping!
  • Go to a home store and get a pack of plastic shims that are used in the installation of doors and windows. Drive the shim in the excess space in the receiver tube with a hammer and snap off the excess. Works great, simple to install and is cheap! No wrenches needed if you ever need to remove.

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