Its a Tyre size.

Car Tyre sizes eg 205/55 - 16 = width/ sidewall height as a % of width x Diameter.

I found this earlier - maybe it helps -


Tyre Markings eg 4.10/3.50-4, 4.10/3.50-6, 5.30/4.50-6
This time there are three parts to the tyre size, all in inches. The first, 4.10, is the approximate width of the tyre when fitted to the recommended wheel. The second, 3.50, is the height of the sidewall, and the third is the rim diameter.

So a 4.10/3.50-4 tyre is 4.1" wide, 3.5" tall on the sidewall and fits a 4" rim. This tyre would therefore have the appearance of a low profile tyre. ie it is lower than it is wide.

Alan

Thanks for that IPSKA,
I tend to agree with K1W1307:-) on that one by stating X 8" one is then restricting the Rim width therefore it is either a width limit or redundant. Once again I suggest that
A; The Rim width be removed and the Tire size be simplified to a Max Dia
B; That an allowance of 6mm/.5"

The allowance is because as I discovered with the Cheaper versions of Imported 400/4.80 x8" tires that when inflated to the recommended pressure that they actually stood some 405mm high therefore being over sized.
Again I agree with your thoughts on smaller sizes, though I would suggest that they could be a disadvantage to those that would use them in competition i.e. Greater Rolling resistance and Damn! would they ever increase the shock value of any ripples/bumps on the race course.
Ron

Kiwi307,
My thoughts were to simplify (So I thought) other than that thought then I guess as long as the tire has a legal size on it's side then it is acceptable.
Just a thought if that is the way it is then "So be it". None the less it has been a good discussion and as long as all the implications are bought out an informed decision can be made and locked in. I step away from further argument.
Thanks
Ron

You could always buy another six pack first !


From the FISLY secretary -

These are the rules as voted on the GA of 14.10.2010 :

A Mini-yacht is :
- any assembled land or sand yacht that fits inside a continuous loop of rope 5,6 meter long.
- the wheel size is maximum 400 x 8
- the mast must be a circular tube; no wing section





Here is the proposal for refining to be voted on the next GA in September 2011 :



There is a proposal for adjustment of Mini-Yacht specifications on the measurement with the rope of 5,6 m.

'The rope must lie on the ground. The touching part of the tyres on the ground must fit inside the rope '
This adjustment will be proposed to vote on the GA at Hoylake in September 2011. Meanwhile it is recommended to respect it as a guideline.

Other proposal formulated in the meeting of 22.01.2011:
' wheel size is maximum 400x8' is to be changed to 'the tyre size'.

Alan

IPKSA said...

You could always buy another six pack first !

sorry I wasnt clear on that ruling,
yes my interpretation was to to buy a new 6 pack rather than try to hold one in