CDHPOWER Bicycle Gas Frame 3.4L Black color,Fuel Tank Built in 3.4L Felt Faker Bike Frame

For 2-Stroke & 4-Stroke Engines.

Requirement on headset size:1 1/8″; bottom bracket 1.732″ /44mm diameter;

Gas Tank Cap included;

Diameter of downtube:42mm

Requirement on switch of gas frame: 10*1.5mm

• Requirement on headset size:1 1/8″; bottom bracket 1.732″ /44mm diameter;Requirement on seatpost:27.2mm
• Diameter of downtube:42mm; Requirement on seatpost:27.2mm
• rear width:126mm,head tube length 150 mm
• the width and Inner Diameter (including depth of screw) of the bottom bracket : 68mmx35.4mm/2.677inx1.3937in
• Bottom bracket: 35.4mm (inner diameter)&44mm (outer diameter)
• PLEASE NOTE 1: the best safe speed if racing: 35km/h；If buyers’ bike rear wheel is with quick release,we suggest buyers do not buy the gas frame unless buyers are professional;
• Rear brake:Disc brake