For oil changes you only need a 12mm for the skid plate and a 24mm socket for the side cover. The regular oil drain is a 17mm. You might as well use the 24mm side port and clean the oil filter screen while your there. Bike takes exactly 1 quart of oil. I had to break th cap off my dipstick to access the oil fill, was too large and hit the frame.
I've got 122 miles on the bike and I'm happy so far. Typical China stuff is broken.
Tires are decent for off-road and bike handles great, on road they are a little soft and squirmy. They might be too soft, bike seems like it would benefit from some cheap Shinko's , some 244's or SR241's will be just the ticket. Ordered a 48 tooth rear sprocket off eBay UK. This bike needs more gear bad, all the power is down low. Seems happiest around 45-50mph with stock gearing, looking to get up to 60-65 with gearing.
