Switching to the Darkside with questions

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Switching to the Darkside with questions

Post  Moorebier on Thu Sep 05, 2013 8:34 pm

I own a 92 Harley Ultra Classic with an Ultra sidecar and I go through rear Dunlop MC tires like I have fat pockets. My tire size is a d402 MU85 b16 77h. How do I convert that into a car tire? I'm a bit lost here, and really tired of wasting $$$ on a MC tire that cannot even get me across the country 1 way... any information would help and would be greatly appreciated.


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Re: Switching to the Darkside with questions

Post  toolsbody on Fri Sep 06, 2013 5:57 am

Moorebier wrote:I own a 92 Harley Ultra Classic with an Ultra sidecar and I go through rear Dunlop MC tires like I have fat pockets.  My tire size is a d402 MU85 b16 77h.   How do I convert that into a car tire?  I'm a bit lost here, and really tired of wasting $$$ on a MC tire that cannot even get me across the country 1 way...   any information would help and would be greatly appreciated.

Here is a link to a chart that will allow you to
 compare the size MT tire you are using now to a car tire.

http://www.discounttiredirect.com/direct/brochure/info/tmpInfoTireMath.jsp

Maybe it will work.Smile

You'll have to look on the side of your tire and find the size and plug it into the chart.
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Re: Switching to the Darkside with questions

Post  motopsycho on Fri Sep 06, 2013 7:27 am

That's a Harley tire - I don't have a clue what the 402 means. You could just measure it.

The tire on the back of my bike is a 195-85-15

That means that it is 195mm wide.

The 85 means the sidewall height is 85% of the tread width.

The 15 is the rim size.

So, if your tire is 6" wide, has a 4" sidewall on a 15" tire, you would convert it like:

6*25.4 - (4/6)*100 - 15 = 152.4 - 67 - 15, then find the closest tire. Something like a 155 - 70 - 15.

Post your actual numbers and we'll work through it.

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Re: Switching to the Darkside with questions

Post  Moorebier on Fri Sep 06, 2013 7:36 am

I just have to say thanks! you help means a lot.
This is the tire size since I had to look it up. 140/90 r16. and that is a tight fit. For some reason I'm having problems figuring out going larger or smaller on the width of the tire.

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Re: Switching to the Darkside with questions

Post  motopsycho on Fri Sep 06, 2013 10:52 am

Happy to help. The width of the tire is just the first number. Yours is 140mm - which is about 5.5". The sidewall height is 5.5 x .90 = 4.95"

So, your overall wheel diameter is 4.95+4.95+16 =25.9"

You are going to have trouble finding a more narrow tire without going to a smaller overall diameter - unless you could find something like a 130/100 r 16 or maybe a 125/100 r16

But, I don't know if either of those tire sizes exist for cars. I have seen 130/100 r16 motorcycle tires, though.

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Re: Switching to the Darkside with questions

Post  Moorebier on Fri Sep 06, 2013 1:18 pm

This is what I found when I Google 130/100-16

http://www.revzilla.com/product/avon-safety-mileage-mkii-tires

this is the size offered 5.00x16
which I'm guessing that it means:
5.00+5.00+16=26
but I'm not exactly sure, so I'm going to call on this tire...
Would you think a tube tire would be worth the hassle?
thanks again for the help...

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Darkside

Post  Tynker on Fri Sep 06, 2013 5:08 pm

Your tire is a 140/85/16. I just installed a Goodyear Assurance 175/60/16 on my buddys 99 Electric Glide , last Saturday. We had to space his wheel pulley out with washers under the holes at each bolt, but it worked just fine. We only needed about  1/8" to clear. He has over 300 miles on it now and loves it. The Dunlop SP5000 is supposed to be the best tire for your application, but they cost 157.00, and he did want to spend that much. We had Walmart install the tire on the wheel,for 10.00, cheap
!!!!
Try this if money is no object.
http://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireModel=ADVAN+Neova+AD07&partnum=755WR6AD07LTS&vehicleSearch=false&fromCompare1=yes

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Re: Switching to the Darkside with questions

Post  Moorebier on Fri Sep 06, 2013 5:17 pm

thank you for the heads up!
I will have to go and buy one...
then find someone to mount it for me because wally world does not do tires here.

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Re: Switching to the Darkside with questions

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