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Comp 3 skinny vs Fat

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thesku11s:
sorry if im being obvious/patronising but it semed you were a little mixed up:

the 1.75 & 2.25 is relating to the width (fatness) of the tyre, the 20" obviously the diameter of the wheel.

Bmx tyres are all standard and you can fit any 20" on any 20" wheel.


in terms of the skinny/fat combo thing as gremlin said you dont need as much grip on the back.

thinner tyres are faster so you have them where you can. this is both because of less energy loss in a squidgy fat tyre and also less rotating resistance. they also weigh less.

It is often necessary to have a big un at the front ( at a sightly lower pressure ) to take some of the bumps.

Topcat:
Thanks all :daumenhoch: :daumenhoch: :daumenhoch:

stidds:
I must say that I only ever used 20 x 1.75 front and rear bitd, wouldn't have dreamed of racing with a 2.125 up front and I never had problems with grip.

Trev:

i go with a chunky 2.25 front and a skinny rear...

MartyC:

--- Quote from: thesku11s on June 25, 2007, 07:06 PM ---the 1.75 & 2.25 is relating to the width (fatness) of the tyre, the 20" obviously the diameter of the wheel.

Bmx tyres are all standard and you can fit any 20" on any 20" wheel.

--- End quote ---

Close, but a 20 x 1 1/8 or 1 3/8 tyre will not fit a 20 x 1.5 or 1.75 rim.  Don't mean to be patronising either  :daumenhoch:

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