Indeed, I see alot of discussion about all these chelsea tractors being useless on anything other than tarmac; road tyres + 4x4 = fail, + ice = epic fail. Have you seen
wheel socks? Like snow chains, only they are just an elastic fabric 'sock' that slips over the wheels, giving much greater traction on icey roads- quite good according to a few people.
Anyway, I digress- picture time:
Compared to my Medusa 36-80-2000, shes only actually 1/8" longer, though somewhat fatter (~39mm without fins). Offered up to my 3905 tranny, its pretty huge, though there is easily room for a nice & wide gearing range; and thats my next task, to work out the gearing ready for next month when I order the esc and some pinions from Mike.
{ To the speed calculator!... }