Inflation has been a problem I have had with every brand of beach wheels I have ever owned.., they all leaked air and the more the leaked, the harder they were to roll on ANY surface.
My Cat Trax leaked badly. Finally, our supplier advised I should try tubes, which I also discovered we sell on our website www.OnLineMarineStore.com
Ooops! So I tried them. I keep them pretty full and they roll like a dream. Don't know of the Euro Tires can use the same tubes or not, but they are also leakers.
And, now we find that Cateez can't get wheels at all anymore and are on backorder indefinitely. <img src="http://www.catsailor.com/forums/images/graemlins/crazy.gif" alt="" />
Rick