ernie - 10-1-2010 at 11:32 AM
Hi all, new here and hoping to find some help. I've been using a mountain board on the beach but having trouble in the turns . tires seem just too
small and dig in too much , causing board to slow down abruptly. Figured bigger tires would help me float on the sand a bit more. I have 200x50
tires on a Earthboard. Don't know much at all about tires, hubs etc. I know bigger tires/ wheels are available as i've read some posts here,
just don't know what fits what and how to go about it. Alot of the posts here sound very complicated. Hoping to find that there is, if not an easy
way, at least a reasonably doable solution. I'm fairly good w/ tools and repairs. Any suggestion greatly appreciated.
Thanks,
Ernie
Houston AirHead - 10-1-2010 at 03:29 PM
pictures would help allot
McDuck - 10-1-2010 at 04:01 PM
Yes, 9" tires are available. The 200x50 are 8" tires. I don't know much about riding on the sand so I'll leave that piece of the question to someone
blessed enough to be kiting on the beach.
power - 10-1-2010 at 04:26 PM
Are you riding on hardpack or fluffy sand? I know that riding in soft fluffy sand is difficult even with some bigger buggies, and those tires are
massive compared to a landboard. Its always going to be like riding a bike in soft sand, its not so much the circumference as it is the width of the
wheel. No landboard tires that I know of differ in width any significant amount.
Houston AirHead - 10-1-2010 at 05:31 PM
oh they are 8's, go with what power said.
Kamikuza - 10-1-2010 at 07:23 PM
I got my boards next to me right now and the Scrub has 200x50 wheels on rims that seem to be the same size as my Kava ... but the Kava has 235x65
tyres and I have used that puppy on the beach in NZ. That was sand that get covered by high tide so it's reasonably packed.
If you're feeling rich, you can but a board with balloon tyres ... they cost around US$1,300 to buy here 
ernie - 11-1-2010 at 05:55 PM
Thanks for the replies. I'm riding on hard pack sand at low tide . It might be a bit softer at times depending on how long the tie has been out,
but definitely not fluffy sand. Would the 9" tires fit on my wheels ? Are they standard size or do you need to buy both ? Is it necessary to buy
from the same mfg. of my board or are after market part available ? If as Power said , the width doesn't vary much among the different sizes,
what is the advantage of 9's over 8's ? Sorry about all the newbie Q's ....
Ernie
power - 11-1-2010 at 05:59 PM
Sure you have enough air in those tires? If they're not fully inflated that may be one of your problems.
Kamikuza - 11-1-2010 at 06:12 PM
The rims or hubs on mine are exactly the same ... but the 235x65's are noticeably bigger and wider - they balloon a little over the rim while the
200x50's are a nice tight fit. I should take pics shouldn't I that'd be easier
I assume there's a tube in there too, so you'd need that ... although you could make them tubeless I guess - my MTB buddies do it on their
non-tubeless rims ...
ernie - 12-1-2010 at 06:42 PM
The tires are inflated to recommended psi. So I could expect the 9" tires to perform the same as the 8" ? Where could you get the (' if I decided to
try a bigger tire ?
thanks,
Ernie