This is an original Smiths RC 1303/03 tachometer rev counter indicator in 3:1 ratio, cable turns anti-clockwise, and it registers 500-8000 revs. This tach was original equipment on 1961-63 BSA A10 Super Rocket and A10 Rocket Gold Star Twin models. It would also work as a chronometric tach on BSA A65. BSA was the only British marque to come with a 3:1 ratio tach. It was rebuilt by Mark Bohman, and has been calibrated, tested and is working. This tach has a new dial face, chrome bezel, glass, gasket and glass ring. All the rest is from original Smiths parts. Some of you may be familiar with Mark's work, he rebuilt all of DomiRacer's Smiths magnetic & chronometric instruments for me and would come to Mid-Ohio Vintage Motorcycle Days with a glass display case full of rebuilt Smiths instruments just to showcase the quality of his repair work. This is one of Mark's instruments from the glass display case.

My name is Tony Schanz, I formerly ran DomiRacer Distributors in Cincinnati, Ohio buying and selling vintage English, Italian, & German motorcycle parts, tools, accessories & memorabilia. DomiRacer closed 6/11/2013, but I still deal in parts, motorbikes, decals, advertising, photos, posters, & more. Please add my store, The Real DomiRacer, to your favorite sellers and watch for other rarities in my future eBay listings.