x1 crt and x2 crt whats the difference?

[iamdigger]

x1-crt and x2-crt whats the difference? I want to buy a convertion kit to covert to brushless, is there a big difference? Is it likely that a kit for a x2 crt will fit my x1 crts. There is not a coverstion kit for an x1 crt as far as i know otherwise I wouldn't be asking.

Anyway if you have had both and can take a look at the convertion kit and give me any feedback why it may not work.

http://www.s-m-d.co.uk/xts-23-brushless-conversion-kit-for-x2-crt-pro-only-i2465.html

Many thanks