ZMC888 one rmb for a lap is amazing value haha i don't think my local track will go for that, they charge 60rmb for a slow fourstroke kart with a 160 honda engine and 130rmb for a 100cc 2stroke, i usually spend about 20 mins picking a good one and straightening the steering and checking tyre pressures before a session, the four strokes do a lap in about 50 secs the two strokes lap in under 40 secs, great fun and quite a handful with a sharp powerband i likee!
Is that where you got your kneedown picture taken??

Rich