I previously had 2 4x4's and loved 'em both. Pull, push, and kwik as a 2wd Cos on the bends.
As it would happen I just changed the wheels on my ST24, so now have a 2nd hand set of 18" BK121's if you're interested.............I've asked around but no-one at work wants em. No tyres, hence only a ton.
PM me if you're interested.