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FORUM GODFATHER.....R.I.P. PAT
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I had a 160/60-17 on once. I couldn't wait to go back to a 150.
 

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I've currently got Metzler Z7s and I think its a 170-50 on the rear. The bike is in storage right now and I can't check it to confirm.

I'm not happy with the handling of the bike at all. It feels like it wants to fall over if I try and corner somewhat more agressively. I've installed an Elka shock and sonic springs but still no joy (but it does ride great on the slab). Now that the tire is done, I'm going back to stock to see if it makes a difference in handling.

That said, I bought the bike 2 years ago with those tires on it and I have no other frame of reference.
 

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Im Darksiding with a 205/50/17.
Love it but its not for everyone:thumbup:
Mike
 

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Im Darksiding with a 205/50/17.
Love it but its not for everyone:thumbup:
Mike

Truth, this is the second one on mine, got over 42,000km's from the first one, second one is closing in on that mark, I ride over 40 K a year, it is nice to do it on one tire and not 3 or 4
 

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I got a taller but thinner rear, 140/60, love it, bike handles great! I don't think anyone likes a wider tire than 150 on a strom unless you like dark side. My 140/60 actually makes the rear look a lot beefier and I have slightly more contact patch with the tread not as wide. You can tell from the rear thy it is smaller in width but I have yet to feel anything but traction gain.
Only downside is it is h speed rated, and if you're not riding highway all the time you need at least +2 rear teeth. I got it for more comfort and slight mpg increase, and mostly to get a closer to correct speedo w/o spending $$$


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Wider Tire and Handling

Because the question was asked, I've been doing some research around the web. Also, because my bike came with a 170/50-17 and I've had handling issues when cornering (see below). So here's what i've found...

Choosing the right tire size for your motorcycle rims - Sport Rider

Most of the info I found was on sport bike sites. I guess they like the poser effect of the big rear wheel.:green_lol:

Basically, there is lots of ancedotal evidence from folks, on lots of different sites, who put wider than stock tires on the back. Most of them experienced negative handling characteristics. The general concensus was the bike was slightly harder to turn in which would quickly develop into a 'falling over' feeling. They claimed the harder to turn in felt like a tire that was worn flat in the middle from too much straight slab. The falling part... well, lets just say you have to experience it.:yikes: Most claimed that the general handling characteristics were worse than stock.
The other comment was that production engineers go to great lengths to match tire sizes with other bike geometry like rake, trail, swing arm angle, etc. to come up with good (and safe) handling characteristics. When you put a wider tire on, the entire geometry is messed up and handling in the corners suffers. And isn't that why we ride bikes? For the twisties?

This of course has nothing to do with darksiders.

I have a new set of tires (stock size) that will be going on my bike before the spring riding season. I'm tired of the feeling of the bike falling over in corners (and scaring the shite out of me) or pushing through them if I back off a little. I really struggled during the Lee Parks Advanced Rider Course. The Elka/Sonics suspension upgrades only helped moderately. I now believe I've found the culprit.

If you don't push the bike in corners and ride a lot of highway miles, a wider rear won't be noticed. Be careful if you like to corner hard.

My personal 2 cents and what I found on the web.

D
 

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FORUM GODFATHER.....R.I.P. PAT
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I ride street only using Michelin Pilot Road tires. I'm happy with stock sizes, 110/80/19 front and 150/70/19 rear.
 

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150 x .7 = 105

140 x .6 = 84

how is it that taller ?

maybe you mean a 140/80 = 112
I think that is what I meant, I have switched back to stock since then due to wear issues. But it was definitely taller, a good inch in diameter. Do not recommend for long highway rides btw. Squaring is greatly accelerated with this size and only h speed rated


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I once wore out a tire during a trip so I bought the first tire that would fit--a 140-80x17 Bridgestone--It was slightly narrower but slightly taller than the worn out stocker, I rode on with my bike handling AT LEAST as well as new. If I ever see a bargain on another 140-80 I wouldn't hesitate to snag it--no problem at all. It should be considered whenever replacing the rear tire. There is no downside.
 

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I once wore out a tire during a trip so I bought the first tire that would fit--a 140-80x17 Bridgestone--It was slightly narrower but slightly taller than the worn out stocker, I rode on with my bike handling AT LEAST as well as new. If I ever see a bargain on another 140-80 I wouldn't hesitate to snag it--no problem at all. It should be considered whenever replacing the rear tire. There is no downside.
There are a few downsides, there are never no downsides. Firstly, you have less acceleration due to a gearing change with a taller tire. Second, I have scrubbed my tire on the under seat storage multiple times with the 140/80 as opposed to stock size. Third is subjective, at high speeds on flat roads the tire wears quicker than 150/70 due to the h speed rating and being slightly rounder than the stocker.

Fuel economy is a plus, handling is more enjoyable, ground clearance is great, an that's to name a few. It's a personal preference.


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