surendra.xbhp

Hi Folks,
I have always seen people opting out for FAT tyres for thier babes.
Not just here, but in orkut forums as well, I have seen people dying to fit one.

In my locality a guy used to perform burn out to get his tyre changed to fat one.
His dad would not allow him to change tyre unless it is worn out.

People defend fat tyres saying they provide good stability, grip n all.
But I have always wondered, does a fat tyre really help that much?
In that case, why don't companies give it pre-fitted.
It's quite evident to see Karizma rear tyre meaner than the one of P220.

So the question is, Is fat tyre really needed over pre-fitted tyre?
Is there any calculation that is done based on bike structure, weight?

I'm really sorry if this thread was already in discussion.

Aryan

General Biking Discussion Approved.

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psycho 98

Typical show off , it does more harm than good, mileage power and sprocket life goes for a toss, its like you paying money to downgrade your performance and mileage.

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Naughty VaIsH

am totally agreed to you brother .....and even spoils bikes looks too some time ..

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jatin_cbz

+1 to your opinion guys...
me also a week ago tried putting dunlop monster 130-90
as the rear tyre for my girl cbz classic. but just in two days
i feel like that my bike was even not touching the top-end.
usually it goes till 115km but was not even touching 100km
so next day itself i replaced that monster with IRC 110-90..
moreover fitment of fat tyre needs many other adjustments
like rear shockers needs to be adjusted.
swing arm needs to be adjusted.
ride quality was almost f**ked up bacause of adjustments....!!!
and now i am pretty satisfied with the stock.
so me to i will never go for any fat tyres.

Jatin_cbz

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rahuldevnath

A bike is best, with its stock tyre setup, any alternation is waste of money and may harm engine, handling and geometry of the bike. Having said that, it depends purely on usage and power of bikes. A 220, in my opinion is the most stable at high speeds. At the same time R15 tyres provide unparalleled grip on track.
Thus a fat tyre if provided by manufacturer is bound have it's positive points, but modifying is purely show off. A 150CC will be ruined, the most common bike genre people prefer to mod!

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jd666

fat tyres are important.. what is lacked physically is made up by visual appeal... ive had people claiming their bike does 130 + ( cbz) after fitting a fatter tyre. I laugh and tell em maybe they have a faulty meter, it should be more like 65!!!

Total waste of time and energy and not to mention screwing up your bike. One upsize is understood, that you can sacrifice moderately for better grip. But going the full monty with "choda tyre" is unbelievable.

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hifisharu

IMHO, most of the bikes available are in the country are commuter oriented and some are even 'Power commuters'. But fact of the matter is that the companies are trying to achieve the best between performance and mileage and thus the choice towards skinnier tyres. And even the compounds are optimised for longer life than performance.
@ Topic starter: Hope it answers your question

As a tip, while upsizing, keep in mind the aspect ratio of the tyre. For eg, if the CBZ, which has a standard 100/90 tyre, (means tyre width is 100mm and wall width is 90mm) is fitted with a 130/90 tyre, the tyre is gonna be huge and totally ruin the looks as well as the handling and the mileage. Best is to upsize by one size and go for a lower aspect ratio. Eg, the FZ16 tyre is 140/60, thus making it look good and perform well.

jd666

In the case of the CBZ your calculation is correct, because the tyre width is 100mm, and the side wall is 90.

- But the side wall height is represented as a percentage of the width, not in mm.

so 90% of 100mm will be 90 mm, but for a 110mm, you would need a 110/80 to get a 88mm sidewall height ( keeping the overall Diameter of the tyre constant).

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Shanz

I agree.
But I would like to add that ''A bike is best with its stock tyre size setup''

One can go for a soft compound tyre if he's not satisfied with the hard compound or vice-versa.
Depend's on how and where the person is using his bike.

For instance, In My Openion RTR's company fitted tyre really suxx. These tyres cannot support the full potential of the bike, so upgradation is must.

On the other hand look of R15 tyres is favourite subject of its critics. But it does its job exceptionally well and provides superb grip.

So again I would repeat that stock tyre size is best suited for bike, compound choice differs from person to person.

And if one is really unhappy with his tyre size then upgrading to only one size bigger is preffered. Anything more will ruin the performance.

Shanz