Sorry let me explain my unintelligible response. I explained my situation to the shopkeeper and he said these wheels were within specs for my situation.
For example, they are designed to work on the yamaha rhino, among other things. The rhino is 500kg's, can carry a load of 200kg's plus two people. This is more than a kb10. These wheels are claimed to be 35% stronger than those standard wheels also.
Also by 'getting', I meant in the process of getting, I am just waiting on a clarification email. Sorry my previous posts sounded a bit dimwitted.