The Bottom Bracket Gauge Tool was designed to provide all the necessary measurements to identify the proper bottom bracket for a specific bike configuration. The gauge can measure:
Bottom bracket width
Bottom bracket shell inner diameter
Crank spindle length
Crank spindle diameter
Bearing inner diameter
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 7" x 3" x 0.125".
Specifications
Gauges for the following crank spindle diameters | 22mm 24mm 29mm 30mm |
Gauges for the following bearing inner diameters | 22mm 24mm 29mm 30mm |
Gauges for the following bottom bracket shell inner diameters | 37mm 41mm 42mm 46mm |
Ruler to measure bottom bracket shell width up to 132mm | 61mm 68mm 73mm 79mm 86.5mm 90mm 92mm 95mm 100mm 120mm 132mm |
Ruler to measure crank spindle length up to 180mm | - |