I had a TW200 for a short time last summer and I can tell you the power difference is night and day. If you are mainly riding street I would definately say there is no comparision. I haven't ridden my WR off road yet so I can't speak on off road handling. I think some people think they are somewhat similar because its only 50cc difference, but the TW is a carburated older design motor,but the WR's fuel injected and is more performance engineered. I hope this helps.