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#Post#: 2460--------------------------------------------------
Tyre width
DIR By: StefanN
Date: June 14, 2020, 12:02 pm
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Thought it would be interesting to find out what width tyres
people are using.
#Post#: 2461--------------------------------------------------
Re: Tyre width
DIR By: TheGiantTribble
Date: June 14, 2020, 3:27 pm
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Two and a half at the front, three at the back
#Post#: 2464--------------------------------------------------
Re: Tyre width
DIR By: chrisenamels
Date: June 15, 2020, 4:02 am
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Same as Bill 2.25 front 3.00 rear (but only one of them :D).
I'm going with 2.50 all round on future builds, having
experienced the two wheeling effects of too much grip.
Edit: Don't know how 2.25 got posted should have been 2.50!
#Post#: 2465--------------------------------------------------
Re: Tyre width
DIR By: TheGiantTribble
Date: June 15, 2020, 5:07 am
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Chris, can't help but wondering...if you increased tyre pressure
on your one rear tyre, would that not reduce grip somewhat,
since less of the tyre would be in contact with the road?
#Post#: 2466--------------------------------------------------
Re: Tyre width
DIR By: Douglas Anderson
Date: June 15, 2020, 5:37 am
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2.50 front; 2.75 rear
#Post#: 2467--------------------------------------------------
Re: Tyre width
DIR By: Ron
Date: June 15, 2020, 6:19 am
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Grip is a function of the friction coefficient and resistance to
tyre distortion, the grip coefficient is a fixed ratio
determined by the rubber compound the components are force
applied down v force required to break the frictional grip , for
a road tyre its normally about 0.9 , tyre distortion effects how
much the tyre will crab away from the direction of travel when
put under side load whilst rolling and it's mainly influenced by
aspect ratio.
As a summary
CoF determines the cornering force required.
Tyre aspect ratio determines the rate at which it will break
away, an 80% tyre will gradually break away where the equivalent
45% tyre will break away more suddenly.
#Post#: 2469--------------------------------------------------
Re: Tyre width
DIR By: Graham Hill
Date: June 15, 2020, 7:42 am
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2.75. Weee, this is fun!
#Post#: 2470--------------------------------------------------
Re: Tyre width
DIR By: chrisenamels
Date: June 15, 2020, 8:34 am
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I went down to the 3.00 from a modern grippy 120 which was
virtually all rubber in the centre, it was much better last time
out. I will though play with tyre pressures when I next get to
play. of course the harder front suspension helped too.
#Post#: 2487--------------------------------------------------
Re: Tyre width
DIR By: Slack Alice
Date: June 17, 2020, 1:16 pm
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Mine are 2.5” all round...rims are 1.6”.
#Post#: 2491--------------------------------------------------
Re: Tyre width
DIR By: ChrisS
Date: June 18, 2020, 1:34 am
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2.5" all round on mine.
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