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Old 01-19-2014, 11:46 AM   #1
Tripletreat OP
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trailer hitch

I have a 1991 Isuzu Trooper ll with a trailer hitch with a 1 1/4" (?) receiver. I want to haul my new-to-me DR-Z 400 with one of the carriers that connect via the trailer hitch. Every carrier I have looked at is set up for a 2 " receiver.
I doubt that the 300 lbs. the DR-Z weighs will overwhelm my Trooper. It's a tough, reliable ol' devil that's pulled two bikes in a trailer for thousands of miles. However, hitch manufacturers seem to think it's only worthy of a wimpy 1 1/4" receiver.
If I have a welder modify the hitch to make it a 2" receiver, will I be arrested by the Feds? Dump my bike on the highway? Otherwise ruin something?
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Old 01-19-2014, 01:50 PM   #2
GH41
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Find out what maximum tongue weight is allowed by Izusu and go from there. There is more to it than the size of the receiver. The way and what it is bolted to under the frame is what counts. You may end up better off buying a light weight trailer. GH

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Old 01-19-2014, 02:01 PM   #3
GH41
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Here is on available for the 1 1/4 receiver. You still need to confirm the hitches capacity. http://www.versahaul.com/vh50cc.php GH
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Old 01-19-2014, 04:13 PM   #4
Tripletreat OP
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The Vershaul is rated at 250 lbs. and costs more than 4 times what the Harbor Freight one will set you back.
I'm all for buying stuff made in the USA, but I must pass on that one.
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Old 01-19-2014, 04:17 PM   #5
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The hitch I presently have is bolted to the frame with four substantial bolts with a thread locker. They sure seem to be up to the job. But, I guess I do need to verify with the vehicle maker what the max. "tongue weight" should be. But, even if I verify the Trooper is up to the task, there is still the question of where I can find a hitch. Can those things be custom made/modified or is there more to it than that?
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Old 01-19-2014, 04:28 PM   #6
Kommando
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Ebay or Etrailer.com.

You may want to beef your rear suspension too.

I'd even consider installing a 9000lb-capacity winch up front, to keep the steering wheels planted.
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Old 01-19-2014, 05:55 PM   #7
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Only four bolts? Sounds kind of wimpy. My wife has a Class I hitch on her Corolla and I have a Class II hitch on my Camry, and both of them use six bolts to attach.
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Old 01-19-2014, 05:58 PM   #8
troidus
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Oh, and my Class II is only 1-1/4", but is rated for 300/3500. I've had 4,000 on it, though, for 900 miles.
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Old 01-19-2014, 06:20 PM   #9
broncobowsher
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Also remember that the tongue weight rating is based on a hitch ball ~6" behind the bumper. The bike haulers put that weight at least twice that far back.

The ability to take a pulling force is easy. To take the torque loads is a lot harder. And using a hauler on a hitch is a lot longer lever then just putting a trailer on a ball. It isn't just the hitch hauler that matters, it is the hitch and maybe even the structure that it bolts to as well.
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Old 01-19-2014, 06:55 PM   #10
GreaseMonkey
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My 2 cents:

http://www.discountramps.com/hitch-r...FY1FMgodAn8AWQ
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Old 01-19-2014, 09:17 PM   #11
Tripletreat OP
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That's an interesting site. Thanks for the tip.
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Old 01-19-2014, 10:00 PM   #12
holckster
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Quote:
Originally Posted by Tripletreat View Post
I have a 1991 Isuzu Trooper ll with a trailer hitch with a 1 1/4" (?) receiver. I want to haul my new-to-me DR-Z 400 with one of the carriers that connect via the trailer hitch. Every carrier I have looked at is set up for a 2 " receiver.
I doubt that the 300 lbs. the DR-Z weighs will overwhelm my Trooper. It's a tough, reliable ol' devil that's pulled two bikes in a trailer for thousands of miles. However, hitch manufacturers seem to think it's only worthy of a wimpy 1 1/4" receiver.
If I have a welder modify the hitch to make it a 2" receiver, will I be arrested by the Feds? Dump my bike on the highway? Otherwise ruin something?
Been awhile but as I recall physics dictates that an objects weight is multiplied by the distance from it's support point.
300# DRZ mounted just 2 ft behind hitch will actually feel like 600# to the hitch and vehicle.
I'd go with a trailer.
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Old 01-20-2014, 09:33 AM   #13
koorbloh
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you might get away with making it work, or you might leave your drz on 84 halfway to mt home

trailer.

little hitches aren't for that
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Old 01-20-2014, 04:05 PM   #14
Tripletreat OP
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I got some hard figures today and there is no doubt my idea is a non-starter. The Trooper can safely pull a 2K lb. trailer, but the tongue weight of the DR-Z is way over the recommended safe limit.
I guess I'll be burning up the knobbies on the pavement getting to the dirt.
Bummer.
Thanks for all the suggestions that keep me from doin' sumpin' stoopid.
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Old 01-20-2014, 04:26 PM   #15
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Those Isuzu's had some serious frame rust issues well into late 90's and early 2000's. The rodeo's were recalled the trooper were not but still had the frame cancer bad.

Be a major bummer for your some what marginal hitch to be no longer attached to the frame and the motorcycle laying in traffic. Note HF carrier would OK for bicycle not a motorcycle.
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