They are rated for around 30 psi and I usually put 35-40 psi in mine for all surfaces.

I think some people are putting up to 60 psi in them.

You could probably go with lower pressure on tarmac to even out the wear on the tread without losing too much speed.

Remember that on sand you are looking for the hardest sand possible. Any softness in a sailing surface sucks energy from the yacht so you do not deflate tyres on sand as you would with a 4 WD.

I tried my yacht on a mud flat that was dry on the surface (a thin crust) but was slightly spongey. It wouldn't get up and go at all. When it got a bit of side thrust it would break the crust and lose all energy.

Tyre pressure is something you can play around with but I find 35-40 psi suits most surfaces. When it comes to racing you will have to ask the experts what is optimal for different surfaces. Happy Sailing.

For our LLM's we put 30 - 35 psi in the rear wheels and 20 - 25 in front, using wheel barrow wheels all around. This gives good wearing except on dry salt or that perth lake. Ride is fairly smooth as well. Too soft just sucks speed.

landyacht said...

.. My minis cant use 2 plys on the rear as it just destroys them.

Interesting!! Class 5s lived with 2 ply on tarmac for absolute ages, and at around 35 on the seal. On sand they lasted till they perished with 25 to 35!
Then again with the mini it is most usual to be chucking them round a lot so I guess tyre destruction is part of the game.

Now theres a diference, My 26" tyres will do about 6 seasons at safety bay where the wheel barrow tyres last 2 meetings on average. I use 40psi on aus230
Cheers
aus230

deansh250 said...

Thanks for the info. Tried my LLM on beach for the first time last weekend. Was disappointed that the sand wasn't hard enough. Yacht seemed to dig the leeward wheel in slightly then just bog down. I really need to find a nice large parking lot. I'll try to post some pictures of my yacht soon. Thanks again for this very helpful website.

Soft sand just kills them We only sail on the beach at low tide here locally
Above high water mark is a no go area is that where you were?
Some beaches just are not suitable even at low tide just too soft
Good beaches are a joy though