Hey guys, new to the forum. I've got either a Coolster or Tao Tao and I'm not sure of the size. It's either a 125 or 150. I need a few parts and would really help if I knew exactly what bike I have. I found the manual and it's so generic and doesn't give any information on it. Is there somewhere on the bike where I can find a brand or model number??

 

The engine number usually has the bore size encoded into it. Not an absolute guarantee as a 150 could be a 125 bore with long stroke crank. Particularly as I don't think Honda themselves stretched that engine to 150cc. The 125 has 56mm bore as a rule. Cylinders normally also have the engine capacity cast into them. There should be a VIN number on the frame, this contains a makers code, but this is difficult since Cyclepedia's VIN decoder went off line, none of the other VIN decoders seem to be able to decode Chinese makes.