Package include: 1pc 3.4L frame(Brushed Alum), 1pc Bottom Bracket, 1pc suspension fork, 1pc Headset, 1pc Petcock, 1pc Motor MountBottom Bracket Three Size Options (68x116mm, 68x120mm, 68x122mm)Note: If buyers’ bike rear wheel is with quick release,we suggest buyers do not buy the gas frame unless buyers are professionalFor 2-Stroke & 4-Stroke Engines.Requirement on headset size:1 1/8″; Bottom bracket 1.732″ /44mm out diameter;The width and Inner Diameter(including depth of screw) of the bottom bracket: 68mmx35.4mm/2.677inx1.3937inGas Tank Cap included;Kickstand ExcludedRear Width: 126mmDiameter of downtube:42mmRequirement on switch of gas frame: 10*1.5mmRequired for seat post:27.2mmRequired for seat post clamp:31.8mmWork with Disc Brake and Coaster BrakeFor gas motorized bicycle onlyPLEASE 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 professional3.4L Frame Youtube Link: https://youtu.be/XgKiZlsJhOABB Bottom Bracket:Three Size option: 68x116mm, 68x120mm or 68x122mm.Package includes:1*Sealed bearing bottom bracket including cups+2 waterproof screwAluminum sheath, cold-forged steel cupsBoron Axel/spindleSealed bearingsFinish: Phosphated cups anodized sheathSpindle Interface: square taper.For Bike Type: Mountain Bike, Road Racing Bike etc;Great length for Fixie or Single Speed Bikes;Cartridge Sealed Bearing with Aluminium sheath;Cold-forged steel cups;Thread: BC1.37″ x 24T English Thread;Axle: Borron Steel (Square)Finish: Phosphated cups anodized sheathWeight 280g (9.87 oz)26″ Suspension Fork Details: · 26″ front fork: suspension with double shoulder; · disc brake(center hole to center hole: 50mm) and U caliper brake compatible; · compatible with 26″*2.325 inch tire max · Headset requirement is 1 1/8” · Outside Diameter of Up Tube:2.89cm/1.138 inch and 38.1mm/1.5 inch for lower leg, · Suspension forks does not work well with Bicycle handle bar which fits well on out leg diameter 3.15cm to 3.18cm(1.24 inch to 1.25 inch) of triple tree fork. Note:Suspension forks does not work well with bicycle handle bar (for out leg 31.5mm-31.8mm)CDHPOWER Bicycle Gas Frame 3.4L For 2-Stroke & 4-Stroke Engines.Diameter of downtube:42mm;Requirement on seatpost:27.2mm.Requirement on headset size:1 1/8″; Gas Tank Cap included.Bottom bracket 1.732″ /44mm diameter;Item Weight:11 pounds
