Any thoughts on this transmission?

[Wheres my dog]

Two part question before I call in tomorrow and ask him myself...

Here is a link

http://www.thatsdax.com/ENGINE_KIT_PARTS_PAGE_4.html

Scroll down the page a little and check the gearbox/transmission... is anyone using this, and what are your thoughts on it?

Also, on the same page as linked to above, what chain pitch is the gear that fits onto this?

Thanks