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Automotive Tire for rig
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mbellino
Posted 8/23/2016 7:40 PM (#90462)
Subject: Automotive Tire for rig


Member

Posts: 8
0
Location: Sandia Park, NM
I just purchased my sidecar rig, a 2009 BMW K1300GT with a new Hannigan, and I'd like to put an automotive tire on the rear, and a rear motorcycle tire on the front, mounted backwards. What is the best source for an automotive tire that will fit my rim?

Thanks for any help you have. Glad to be back to Sidecarist. This is my second rig, the last was a few years back.
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Al Olme
Posted 8/23/2016 11:26 PM (#90468 - in reply to #90462)
Subject: RE: Automotive Tire for rig


Expert

Posts: 1736
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Location: Minneapolis, Minnesota
Mike,

Many of our readers are not familiar with all the BMW models and what size wheels they run. You'll get better results if you tell us what size wheel, both diameter and width, that you have. Good luck.
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mbellino
Posted 8/24/2016 12:31 PM (#90477 - in reply to #90462)
Subject: RE: Automotive Tire for rig


Member

Posts: 8
0
Location: Sandia Park, NM
The wheels are 17 inch, both front and rear. The front tire seems to be 5 in wide (current tire 120/70 ZR17. The rear tire seems to be 7 in wide (current tire 180/55 ZR 17.

Does anyone have the new contact information for the Accessory Pit, formerly in Albuquerque, now in Show Low, AZ?

Mike
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RoanokeRider
Posted 8/26/2016 5:17 PM (#90511 - in reply to #90477)
Subject: RE: Automotive Tire for rig


Member

Posts: 36
25
A Achilles 175/55-17 is about the only one that fits. I am using it on my R1150RT on the stock wheel. Tire-Easy.com They also have them on ebay and Amazon. Priced around $65. I got 11,500 miles on my first one. It is a summer tire so not a good tread pattern for snow or off road.
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DRONE
Posted 8/30/2016 2:24 AM (#90561 - in reply to #90462)
Subject: Re: Automotive Tire for rig



Veteran

Posts: 238
10010025
Location: Tacoma, WA, USA

Your rear wheel is a 5.5x17 and the front is 3.5x17. Laughing

 

The rear rim is plenty wide enough to mount a 205/50-17 car tire which would give you the same ride height as stock. The problem, though, is creating enough clearance to not rub the swingarm or the muffler. If you're a clever fella, you could experiment with wheel spacers and whatnot, but then you have to be sure the caliper and rotor and ABS are all OK with the changes. Starts to get complicated. The 175/55-17 Achilles Economist mentioned by Roanoke Rider is a simple swap and requires no further fitting. I'd go with that.

 

For the front, again you have a nice wide rim that will take up to a 140, maybe a 150, but you still need the tire to clear the fender and forks. I'm guessing the fattest rear tire you could get away with would be a 130/70-17 which would only increase your front ride height by 1/4". A nice bias ply rear in that size is the Metzeler Lasertec .  Guys also seem to get a lot of wear from the Bridgestone Battlax BT45 .  I tried one on the front of my GS rig, but I go off-pavement quite a bit and the BT-45 couldn't handle it.  But on pavement it was great.

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mbellino
Posted 8/30/2016 11:03 AM (#90564 - in reply to #90462)
Subject: Re: Automotive Tire for rig


Member

Posts: 8
0
Location: Sandia Park, NM
Thanks to all for your advice. I'm on it and hope to have this sorted out soon.
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mbellino
Posted 9/26/2016 11:32 AM (#90859 - in reply to #90561)
Subject: Re: Automotive Tire for rig


Member

Posts: 8
0
Location: Sandia Park, NM
Took your advice and these two tires arer working perfectly. Had a 750 mile trip in CO and NM and the rig handled very well. My local BMW dealer did the install after I sourced the tires.

Thanks for the advice!

Mike
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DRONE
Posted 9/28/2016 3:15 PM (#90886 - in reply to #90462)
Subject: Re: Automotive Tire for rig



Veteran

Posts: 238
10010025
Location: Tacoma, WA, USA

Great!

Laughing

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