Long connecting rod with higher hole piston (1 1/16 or 30mm piston). Oil / gasoline mix ratio: 1:16 for first 200 miles and 1:20-26 after. The item "BGF Super Racing 80cc engine for 2-stroke gas motor bike" is in sale since Monday, August 3, 2020. This item is in the category "Sporting Goods\Outdoor Sports\Scooters\Gas Scooters". The seller is "bgf-motor" and is located in Tomales, California.This item can be shipped to United States.