I'll try to remember to take some pics the next time I have everything hooked up on the new truck. The old was a VW Passat TDI, and the bike rack was on the back of the TD with that vehicle, and a dual extension hitch would not have worked on that TV due to the TV tongue weight limit.
Yep. Thats my limitation too. My VW Alltrack has an Ecohitch 2" on back with a 350# tw limit (3500# gtw)
that I could "maybe" get away with a dual hitch, BUT I tend to be conservative.
The Alltrack is similar to older Subarus so hoisting bikes another foot up into the air over roof costs drag and mpg, and wind wear on the bike.
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So I'm like
@JohnC - my single leg powered commuter bike the rides in back of CI on a 1up, no cover. Thats worked pretty well on a 6000 mile trip, and two lightweight commuters or MTBs are within the CI hitch limits with 1up aluminum rack.
That 1up also worked on a couple shorter trips both on CI or rear of TV down bumpy roads. The 1up can be folded down 45% out of the way to open galley, or to ground, with bike on or off, and folded at 45 bike off makes a handy place to park a cooler, BUT like
@JohnC notes its sort of a tight squeeze to slide in to cook, between the CI bumper and the 1up, and easy to bark shins.
Too much of a PITA for more than an overnighter, or parked at a truckstop, wally world...for longer easier access Just simple to pull the 1Up off and stash it on the TV hitch once you get to destination, locked there or to carry bike to the attractions.
I think when lightweight ebikes made on MTB frames come down in price I could carry two no problem. Just take the removable batteries off and recharge in the TV, connected to a couple folder solar panels...or recharged slowly by TV running.
or
possibly in the CI plugged in somewhere if you have the solar roof/CTEK alternator combo and Lion battree, while going down the road to next place.
I would do like
@Turnip936 suggests, frequent chain lubes and bungee on plastic bags to protect sensitive parts as it does get dried out in the sun and wind faster.
Because the 1up is far aft of moment arm, and the CI hitch while well made and supported, its still NOT as burly or as protected a connection as an integral 2" on a BOF truck, van, or larger SUV, or the factory integral hitch points on newer unibodies.
So I wont put on a bike cover. That extra windage IMV might catch a gust of wind or wind blast off a passing semi and
setup a yaw moment at speed.
You could ask Cary about how much to reduce weight limit as adding an extension to the hitch point. He commented on that on a 2011 post here, somewhere.
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