http://www.delphi.com/_str/startgo here ask about the tzr250.
got 1 guy his nick call tzr250_3ma, he riding the one pipes under seat one. dun worry the ppl there all quite helpful one, coz their motto is got knowledge must share.
but u cannot ask them about mototiams one, they very anti mototiams hehehe. everything they do all DIY, EVERYTHING.
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vroom...tingtingtingtingti...vroom~