Rule for Spokes, Bearings and Pins

This handy shop tool has remained more or less unchanged since we introduced it in the 1970s, and it’s still relevant today. To use, simply snap the end of straight or J-bend spoke into the oblong hole and read its length on the scale. Featuring both metric and SAE length markings, the SBC-1 is also handy as a general-purpose ruler. Gauge holes are provided for quickly and easily determining the size of the most common ball bearings and cotterless crankarm dust caps. Anodized aluminum with embossed markings for easy reading and a lifetime of use.

FEATURES

• 0-12.25 inch SAE markings
• 0-310 millimeter metric markings
• 1/4", 7/32", 3/16", 5/32" and 1/8" ball bearing gauges
• 8, 8.5, 9, and 9.5mm cotterless crankarm dust cap gauges