Roland rear wheel General specifications: Color: silver Material: aluminum Inch size: 26 x 1 3/8 Type of bicycle: city bike Brake type: rim brake Position: rear Weight: 1260 grams Rim specifications: Width: 24.6 mm Inner width: 18.6 mm Height: 14.3 mm Valve hole: 8.3 mm Spoke specifications: Number: 36 Spoke thickness: 14G (2 mm) Hub specifications: Installation width: 120 mm Axle length: 190 mm Space for pawn: 22.8 mm Material: steel