DONSP1986 Bicycle Gas Frame with Gas Tank Built in, 2.4L Frame -Gas Motorized Bicycle

Features

• Gas Frame 2.4L Requirement on seatpost:27.2mm,Note: buyers need know how to fasten the motor on the downtube of gas frame to prevent crack from vibration which maybe caused crack of frame; Black bicycle gas frame Built-in 2.4L gas tank Designed for the 2-cycle engines 48cc/66cc/80cc with 40 to 50mm wide front mount stud spacing
• Rear Disc brake bracket and V braking system
• Frame made especially heavy duty for gas engine applications Available with 135mm rear frame width for either single speed or multi-speed bikes.
• 38mm diameter downtube 70 degrees angle V frame, the width and Inner Diameter of the bottom bracket:68mmx50.8mm/2.677inx2in
• PLEASE NOTE 1: the best safe speed if racing: 35km/h；Head tube: 150mm; requirement on headset size:1 1/8"; bottom bracket 2" diameter; Any questions,please contact us firstly! we can help you solve the problem until you are satisfied.