Wheels Manufacturing Bottom Bracket Gauge

The Bottom Bracket Gauge Tool was designed to provide all the necessary measurements to identify the proper bottom bracket for a specific bike configuration. A metric scale runs along the long edges for measuring bottom bracket shell width and crank spindle lengths. Durable red anodized aluminum with laser etching. Overall size is 7" x 3" x 0.125". The gauge can measure: - bottom bracket width - bottom bracket shell inner diameter - crank spindle length - crank spindle diameter - bearing inner diameter Specifications: Measures crank spindle diameters: 22mm, 24mm, 29mm, 30mm Measures bearing inner diameters: 22mm, 24mm, 29mm, 30mm Measures bottom bracket shell inner diameters: 37mm, 41mm, 42mm, 46mm Measures bottom bracket shell widths: 61mm, 68mm, 73mm, 79mm, 86.5mm, 90mm, 92mm, 95mm, 100mm, 120mm, and 132mm Measures crank spindle lengths up to 180mm