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Tires, Tire Mounting & Demounting Do you have a favorite set of tires? Tell us about them here.

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Old August 7th, 2014   #11
Blue One
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Default Re: Tyre size

I had a 180/55-17 on my ST, I got it in a size mistake when the dealer sold me tires. (tire labeled incorrectly)

I had no choice but to install it and it fit well enough but I did not like it.

It changed the way the ST handled and corners were rather strange.

The bike would not roll into a corner smoothly and had a tendency to want to "stand up" while in a corner, not a natural feeling when you get used to the STs proper sized tires and how they handle.

I ran it until it was worn out but was never happy with it. When it was time for a new one I went back to the STs stock tire size and it was like riding a new bike.

Ignore the fools who will tell you to install Hankooks and other car tires, they are not intended for motorcycle use and as such have no place anywhere near a motorcycle unless they are on the car you are riding past.
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Last edited by Blue One; August 7th, 2014 at 04:52 PM.
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Old August 7th, 2014   #12
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Default Re: Tyre size

Quote:
Originally Posted by Blue One View Post
I had a 180/55-17 on my ST, I got it in a size mistake when the dealer sold me tires. (tire labeled incorrectly)

I had no choice but to install it and it fit well enough but I did not like it.

It changed the way the ST handled and corners were rather strange.

The bike would not roll into a corner smoothly and had a tendency to want to "stand up" while in a corner, not a natural feeling when you get used to the STs proper sized tires and how they handle.

I ran it until it was worn out but was never happy with it. When it was time for a new one I went back to the STs stock tire size and it was like riding a new bike.


Ignore the fools who will tell you to install Hankooks and other car tires, they are not intended for motorcycle use and as such have no place anywhere near a motorcycle unless they are on the car you are riding past.
Thanks for the input and comments which is steering me away from the PR4 under the circumstanses whic is a great pity as I have had some great feedback on the PR4
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Old August 7th, 2014   #13
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Default Re: Tyre size

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Originally Posted by DickPeake View Post
Hi Panfan, long time no see! I don't know what the insurance situation is in SA, and this is an issue that the majority of my USA friends either ignore or isn't actually an issue for them, but what would your insurance company say if they knew you were fitting the wrong tyre to the back wheel, because that is what you are actually proposing. In the UK, fitting a tyre of the wrong size or type would invalidate the insurance. There is a standard question our our insurance policies which asks if we have made any modifications to the bike/car and we are obliged to disclose. The insurance company then takes a view on whether or not they want to increase the premium or refuse to insure or take no action because the modification either has no effect or has a positive effect. So I had to declare that I had reflective 'swooshes' stuck on the fairing and the insurance company took the view that they were a safety feature that had a positive benefit in accident prevention, so there was no financial penalty. On the other hand if I had said "I couldn't get the correct size back tyre so I fitted one that is a different (i.e. wrong) size", then they would almost certainly have declined to insure me.
Something to think about and check on (or ignore ;-)
Dick
Hi , yes it has been a while trust all is well. your comment re insurance is certainly a valid one but in the RSA it's not an issue, the biggest problem with ensuring you are not penalised by your insurer is lack of tread on a tyre, of course if I fitted a car tyre that would negate my insurance,however "Blue One" has responded with his experience related to the same problem and I am now thinking twice about it unless proved otherwise.
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Old August 8th, 2014   #14
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Default Re: Tyre size

Just another thought...

I am running the PR4GT on my ST right now. I actually enjoyed the PR3 just as much if not more. Given the choice, it would be difficult for me to choose between the two. If you can still get the PR3, you will not be missing out on much.
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Old August 8th, 2014   #15
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Default Re: Tyre size

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Just another thought...

I am running the PR4GT on my ST right now. I actually enjoyed the PR3 just as much if not more. Given the choice, it would be difficult for me to choose between the two. If you can still get the PR3, you will not be missing out on much.
Thanks for the infon Redfish but I believe the 4 has a better/longer wear life by some 20%. can you remember how many miles/kms the 3 gave you
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Old August 8th, 2014   #16
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Default Re: Tyre size

I took them off at 9,000 miles. There was a great deal of tread left and I hated to throw them away but I was about to depart on a very long trip. I was not willing to risk wearing them out or riding in the mountains on a semi-worn out tire.

You can't really go by that because every one rides differently. My Dad got just over 9,000 miles out of his PR3s but they were worn out to the wear bars. He rides his FJR with a bit more throttle in the curves than I do.
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Old August 8th, 2014   #17
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Default Re: Tyre size

I prefer the widest, lowest profile versions.

But, that is just me.
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Old August 8th, 2014   #18
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Default Re: Tyre size

I guess I'm surprised that fitting a slightly different tire size is considered a "modification". If I had been asked if I modified my bike by an insurance company and had a slightly different sized tire fitted, I would have honestly answered "no". The same would go for stickers, a paint job, and most common accessories. I would view a modification as something more permanently altered like the frame or the engine, i.e. changing the frame geometry or adding turbo to the engine. Seems there is a different meaning of the word on different sides of the big swim.

Having said that, my experience has universally been a degradation in handling in every case where I messed with non-OEM tire sizes. The manufacturers spend a lot of time paring the tires, suspension and frame geometry to get the handling they want.
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Old August 8th, 2014   #19
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Default Re: Tyre size

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Originally Posted by Panfan View Post
Thanks for the infon Redfish but I believe the 4 has a better/longer wear life by some 20%. can you remember how many miles/kms the 3 gave you
Can't speak for anyone else, but I got over 16K miles out of my last PR3 rear and right at 16K for the front. That was my best yet with 12-14 being typical for the first couple of sets of PR3s that I ran.
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Old August 8th, 2014   #20
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Default Re: Tyre size

Quote:
Originally Posted by Wjbertrand View Post
I guess I'm surprised that fitting a slightly different tire size is considered a "modification". If I had been asked if I modified my bike by an insurance company and had a slightly different sized tire fitted, I would have honestly answered "no". The same would go for stickers, a paint job, and most common accessories. I would view a modification as something more permanently altered like the frame or the engine, i.e. changing the frame geometry or adding turbo to the engine. Seems there is a different meaning of the word on different sides of the big swim.

Having said that, my experience has universally been a degradation in handling in every case where I messed with non-OEM tire sizes. The manufacturers spend a lot of time paring the tires, suspension and frame geometry to get the handling they want.
Basically, in the UK, if you have modified the bike in any way from the standard bike, then you are obliged to disclose it when entering into an insurance contact. If you have, for example, had an expensive paint job done, then your insurance company would like to know about it or else it will not be covered. As for tyre sizes, the word 'slightly' is erroneous. It's black or white. Is it the correct size and specification or not. Yes or no. Of course, many UK bikers do not disclose, and may well get away with it. I much prefer to be scrupulously honest and know that everything is covered.
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