Need help new to motorised bikes

Discussion in 'Introduce Yourself' started by melon, Dec 24, 2011.

  1. melon

    melon New Member

    i have 49cc zbox motorized push bike with expansion chamber but i am still having troubles with speed any one got advice i have $200 to spent and i want it to go fast and whats a good petrol to oil ratio for a zbox
     

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