26″ Mag Wheel Set; FxR:100x120mm For Rotary Single Speed Flywheel; Attention: excluding 6pcs allen bolts to mag wheel (if you find 6pcs bolts of disc brake rotor on, take off and throw off for safety consider),suggest allen bolts M5x23mm. if your sprocket is thicker than standard sprocket, we suggest bolts M5x25mm. Designed mainly for motorized bicycles;do not need adapter, sprocket only needed;
Brake Compatibility: Disc Brake; Light and very durable. 26″/26 inch Size Wheel; the hole spacing for front disc brakes of mag wheel to be added is 44mm
Put grease/lubricating oil on thread of wheel to prevent damage of thread from Riding. Thread size: 1.375 inch X24T;
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
38mm diameter downtube 70 degrees angle V frame, the width and Inner Diameter of the bottom bracket:68mmx50.8mm/2.677inx2in
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