Asahi Cycle Asahi Cycle Aluminum 27-inch Interior 3-Stage Rear Wheel (Roller Brake Specification) XB227 [Parallel Import]This product is for roller brakes, so it is not compatible with drum brakes. Size: 27x1 3 8 Valve hole: English American style Number of spokes: 36H Gear: 14T Shaft length: 182mm This is a rear wheel for 3 stage interior. Product model number: XB227 Color: Silver Size: Size: 27x1 3 8 Material: Aluminum Wheel size: 27 inches Package size: 78 x 78 x 22 cm; 1. 98 kg