On my 1974 Rickman, the rear axle, spool, bearing carrier and caliper bracket are the style design for “race only”. I’m converting the bike back to road use. The speedo drive comes from the back wheel and I will have to machine and modify the caliper mount to fit a speedo drive.
The bike also uses a stock cb750 tach and speedo. Has anyone ever converted a stock cb750 speedometer (1973-75) to fully electronic, gps driven internals? I’d like to maintain a totally stock appearance. Thanks for your feedback.