Rear Tire 170/80-15 - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 18 Old 12-02-2016, 06:58 AM Thread Starter
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Rear Tire 170/80-15

Hi Guys,

I have been looking for better Rear tire for street 750. Will 170/80-15 tire fit on stock RIM. There are a couple of options in this size i found on Ebay.
  1. Shinko 777 Heavy Duty Whitewall Rear 4-Ply Tire 170/80-15 TL 83H 87-4593 | eBay
  2. Kenda K671 Cruiser Bias-Ply Rear Tire 170/80-15 (046711526C1)
  3. Kenda K671 Sport Cruiser Rear Tire 170/80-15 TL H-Rated 046711526C1 | eBay

Please suggest if any of these will fit on stock rim?

Regards
chirash
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post #2 of 18 Old 12-02-2016, 05:32 PM
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What is wrong with the Michelin tires?? 6500 Miles, I haven't had much of a problem.

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post #3 of 18 Old 12-04-2016, 05:41 AM Thread Starter
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Well for starters they aren't available in India. Plus when I am getting a new one I might as well upgrade. So want to check if this can fit in..

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post #4 of 18 Old 12-04-2016, 04:12 PM
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nop.... max you can get is a 160/60-18. otherwise I think you need new rims and start customizing.
reefer to this link from @10-64 from a different post.
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post #5 of 18 Old 12-04-2016, 04:16 PM
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but I am not really sure now that I read your post again .... I read it 170/80-18.. but its 15 !!!
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post #6 of 18 Old 12-12-2016, 12:12 AM
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One of the forum members has tried a 170 section MRF Vyde tyre on his street 750.
https://www.hdstreetforums.com/forum/186057-post13.html
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post #7 of 18 Old 12-16-2016, 02:00 PM
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Quote:
Originally Posted by Chirash Rupela View Post
Hi Guys,

I have been looking for better Rear tire for street 750. Will 170/80-15 tire fit on stock RIM. There are a couple of options in this size i found on Ebay.
  1. Shinko 777 Heavy Duty Whitewall Rear 4-Ply Tire 170/80-15 TL 83H 87-4593 | eBay
  2. Kenda K671 Cruiser Bias-Ply Rear Tire 170/80-15 (046711526C1)
  3. Kenda K671 Sport Cruiser Rear Tire 170/80-15 TL H-Rated 046711526C1 | eBay

Please suggest if any of these will fit on stock rim?

Regards
chirash
I think you would need a wider rim for that wide of a tire. I did a lot of tire research before changing my tires.

This is a chart from HD Wheels, Product (I cut and pasted the pertinent sections) https://www.hdstreetforums.com/forum/...attach/jpg.gif

It would suggest that the stock (rim 15 inch by 3.0 inch) would be too narrow for 170 mm wide tires. The chart says the max tire size that can be achieved with the max rim on the bike (18 X 4.25) is 160/60 X 18. I am not sure if that size is based on the height of the resulting set-up or the width of the setup.

I have a Pirelli MT66 Route tire on one of my bikes. (more pic in my garage) Attached photo is of stock Michelin next to the Pirelli on my bike. The Pirelli is a 150/90 X15.

It really raises the bike. By my calculations, the height of the rear axle with the stock set up is 11.35 inches and with the Pirelli that I have the axle height is 12.8 inches. Inches really make a difference in the height of the seat, center of gravity, etc.

I have only an inch between the front of my rear tire and the back of the inside of the rear fork. The side clearance between the belt and the tire is barely more than an inch (so 25.4 mm). I guess you could have a tire as wide as 190 mm, but the height of the tire might limit things. You could probably go as wide as a 180/70 X 15 tire inside there but would need a 4 inch wide rim.

I see there is a Shinko 777 in a 150/90 X 15 which would probably work well, but I don't see a matching 17 inch tire for the front. (I have heard it suggested that front and read tire should be the same model tires for rideability (safety) and so have matching Pirellis on mine)

Hope you get some tires that work well for you.
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File Type: jpg Chart.jpg (394.2 KB, 82 views)
File Type: jpg 140-75 15 and 150-90 15.jpg (71.8 KB, 129 views)

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post #8 of 18 Old 01-01-2017, 04:11 PM
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Apart from the Michelin H-D branded tyres, the only ones available in the UK last month, when I needed a new pair, were
Michelin Commanders.
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post #9 of 18 Old 03-08-2017, 10:44 AM
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Well, I'm getting ready for my third set of tires (I put a lot of miles on.. as often as possible) and, I too, am looking to get away from the Michelin if I can help it. I like the idea of the 150/90x15 but I may opt for the 140/90x15 as well. Now with that said, I'm looking over the chart that has been posted more of as a guide and wanted another opinion since CO WanderZest upsized their rear tire. Specifically, the front. The front tire doesn't have much room up there for adjustment, however I figure if the rear is upsizing maybe the front should a little bit, and I've settled on the following if at all possible: 110/80x17 as well as 110/70x17 . Probably the second as main choice.

Any input? First set were the original scorchers, second were the commanders. The scorchers did better in the rain by far for myself, however commanders were better in the dry weather. I just would prefer to find a tire with a better balance and being able to branch out in sizes a little could help find what is best for myself.

Thanks for any and all input.
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post #10 of 18 Old 03-08-2017, 02:46 PM
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I upsized to these tires:
Front - Pirelli MT66 Route 120/90 X17
Rear - Pirelli MT66 Route 150/90 X 15

I have attached a picture of what they look like. They are great rain tires.IMG_6828.jpg


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