How wide can I go?

[mashman]

Making the rear wider also speeds up the turn in....not slows it down. Wherever did everyone get this idea from????

From pretty much every forum in the galaxy and far far away... stands to reason, bigger contact patch, more friction and longer to get to the same point of turn on a wider tyre, slower turn, every so slightly, but still slower... Making the tyre taller turns the bike in quicker, as does rasing the rear ride height and lifting the forks through the clamps a little further

[Grub]

Bullshit Hitcher. Manufacturer's make things to a budget, cut costs, install poor quality parts - all to improve their aftermarket sales and bottom line. Politics also play a big part in decisions that are made.

Not when it comes to tyre size on a motorcycle.

If you want to be a size queen, do it in your pants, not on your bike.

[DEZ]

Good choice mate :-) My oldschool GSXR 750 is running the Ye Oldie metzler setup, ME33 front and ME88 rear

yea bike handles ALOT better with the new tyres. i guess anythings betta than those IRC's aye lol

[Patch]

From pretty much every forum in the galaxy and far far away... stands to reason,

oh fuck, if thats ya source it must be true.

Debating with someone (not me, the other Ginga) )who has years of experience and works in the field day in day out and you base your opinion on a forum - smart.


Size does matter - just ask an honest woman

[mashman]

oh fuck, if thats ya source it must be true.

Debating with someone (not me, the other Ginga) )who has years of experience and works in the field day in day out and you base your opinion on a forum - smart.


Size does matter - just ask an honest woman

Ha ha ha, fair enough.

The guys I had been reading/ asking questions of all race. So they test tyres, tuning the bike to handle with differing manufacturers, compounds, profiles, ride heights (front and rear) blah blah, blah blah (the 200 profile tyre being the new thing), so I have no reason to doubt their years of findings either. The general finding was that turn in is slightly slower with a wider profile tyre. Granted i'm regurgitating, but it really does seem to make sense.

I'm not trying to pick a fight, prove anyone incorrect, just offering reasons that, granted I have read and swallowed, that point to the wider contact patch of the wider profiled tyre slowing down handling, enough to need a steering geometry change.

[DEATH_INC.]

Ok, let me explain nice 'n simple, get a wider tyre on the rear of ya bike and it will lift the rear more when ya lean it over, thus making it turn QUICKER..... simple enough?

[FROSTY:Me]

hey guys thanks for your opinions. yea im still a young'n and just wanting to learn a bit more about riding and bikes. its a good forum for info and you can pretty much find anything you want. so ill just stick with the same size tyre and stay away from shinkos? lol

any ideas on a nice rear tyre thatll be used for everyday riding? i ride no matter what the weather is like.

Good news dude--it just so happens that your rear rim size is the same as MOST F3 and Pro twins bikes.That means 160 tyres are gonna be reasonably easy to find.
Depending on your budget you might want to concider a softer tyre that the "big boys" use simply because you are on a smaller/lighter bike
Im leaning towards suggesting a Med compound Metzler

[CookMySock]

it all changes the handling, you just need to experiment.

My mrs 250 has a wider front tyre than my 650, and my bike tips in real deep, real quick. Its quite stable up to a point, but after that it gets real uneasy. I thought it was because I had a fatter back tyre and a thinner front tyre. Either way, there is a full 1.5cm of my rear chicken strips that remain out of my league. I'm just not getting past it. grumble.

DB

[FROSTY:Me]

On the generic front in my opinion theres a bit of simple politics and finances involved with OEM tyre supplies.
If you are building a million units and can supply tyres $5.00 a set cheaper that still do a reasonable job then you do it -saving of $5 million is a fair chunk of change

[mashman]

Ok, let me explain nice 'n simple, get a wider tyre on the rear of ya bike and it will lift the rear more when ya lean it over, thus making it turn QUICKER..... simple enough?

Sorry, that doesn't make sense to me. Maybe i'm being a dumb shit here, rather you didn't point it out, it's awful woooood... Tell me what am i missing?

here's one of my sources, found this a few years ago... took a while to find it again... http://www.sportrider.com/tech/tires...ize/index.html

[mashman]

My mrs 250 has a wider front tyre than my 650, and my bike tips in real deep, real quick. Its quite stable up to a point, but after that it gets real uneasy. I thought it was because I had a fatter back tyre and a thinner front tyre. Either way, there is a full 1.5cm of my rear chicken strips that remain out of my league. I'm just not getting past it. grumble.

DB

Pah only 1.5 inches... I'm having a hard time gettin that far at the moment, but hoping that's just the recent suspension woes and not my shitty riding ability...

I've been quite surprised over the last few years, reading articles from racers and bike mags on how tyre profile changes the handling of a bike and throws the steering geometry out... stunned to find that if your tyre pressure is slightly low it can transform the bike into an unridebale hunk of shit (that's my story and i'm stickin to it)... It's yet another farkin nightmare when it comes to setting a bike up and I just don't seem to have the knack...

[Patch]

. . . wider profile tyre . . . but it really does seem to make sense.

wider profile?? me thinks this is what is confusing you (maybe)
Width of tyre = width e.g. 180, 190 etc
Profile = height of sidewall e.g. 50, 55, 65 etc

a wider profile doesn't make sense to me either, it would be a taller or lower profile, which makes more sense.

[mashman]

wider profile?? me thinks this is what is confusing you (maybe)
Width of tyre = width e.g. 180, 190 etc
Profile = height of sidewall e.g. 50, 55, 65 etc

a wider profile doesn't make sense to me either, it would be a taller or lower profile, which makes more sense.

Do you ever sleep!!!! 04:37...

That was my bad saying wider profile tyre. I fully understand what the numbers mean, width in mm and height in mm, but thanks for trying to clear up the confusion. I should have written wider same profile tyre if anything...


But I still hold the same view. I don't understand how the wider tyre can raise the rear of the bike just because the width is changed... or understand how a bigger contact patch can allow a faster turn in. I've shown one of my sources (the article) and hence pne of the reasons i have my opinion.

So am I allowed to debate on such a subject, admittedly knowing a lot less than most on the subject, but maybe for clarification purposes i.e. to learn without being treated like a 4 year old (and on a forum of all places) ...

[xwhatsit]

But I still hold the same view. I don't understand how the wider tyre can raise the rear of the bike just because the width is changed... or understand how a bigger contact patch can allow a faster turn in. I've shown one of my sources (the article) and hence pne of the reasons i have my opinion.

It doesn't make it any taller until you're leaning over. Picture it at extremes; with a narrow bicycle tyre when you're leaning right over -- right on the edge of the tyre -- where the road is touching, the tyre is close to the rim. With a big fat balloon tyre (but no higher in the middle, same profile remember), when leant right over at the edge, the contact surface will be far away from the rim. Because it's wider at that point.

So if you've got more room between the rear rim and the contact patch at a certain point, then you will have a higher rear end.

[mashman]

It doesn't make it any taller until you're leaning over. Picture it at extremes; with a narrow bicycle tyre when you're leaning right over -- right on the edge of the tyre -- where the road is touching, the tyre is close to the rim. With a big fat balloon tyre (but no higher in the middle, same profile remember), when leant right over at the edge, the contact surface will be far away from the rim. Because it's wider at that point.

So if you've got more room between the rear rim and the contact patch at a certain point, then you will have a higher rear end.

Ok, I can see what you're saying there and that makes sense, as you say you're further from the rim by virtue of the wider tyre and hence slightly higher. So if that's the case then the turn in will be steeper for the smaller tyre and therefore steering will be quicker on the steeper angle of the tyre???