go big cc. if u go take full b. make sure u ride ur big cc on test day to get ur feeling accustomed.

however as an owner/ex owner of many cc bikes. i enjoyed more on smaller ccs. maxed out the performance on usage. i tend not to ride big cc in klang valley cuz heavy. reminder to you if u intend to go weekend tts kuala klwang, cameron, genting, etc2. dont ride like motogp. its ur life & other ppls life at risks. go track safer, worry free, enjoyable, can max out ur bike power. i got full b but most times riding ma grom125 pit bike on TTs can tapao big bikes at kona.

interstate travel go bigger cc assuming u need to ride highway most times. 250cc also can. see how deep ur pocket is. vibration is cuz of the pots. u want smooth get cb650r huehue.