classic motorcycle forum

Motorcycle Discussions => British Bikes => Topic started by: jefrizzell on April 10, 2021, 04:56:08 PM

Title: 1963 BSA A-50 Revolution Counter
Post by: jefrizzell on April 10, 2021, 04:56:08 PM

A RMS 3003/02 tachometer is listed for the 63 BSA.  What is the drive ratio of that tachometer?  And any suggestions on where to get a refurbished 3003/02 tack?

Title: Re: 1963 BSA A-50 Revolution Counter
Post by: R on April 11, 2021, 11:03:45 AM

I don't know about genuine refurbished, but ebay's offerings are always worth a glance.
If only to confirm the massive prices for genuine these days.

There is always the el cheapo replica variety. says its 3:1
 "A quality reproduction of the Smiths clock RSM 3003/06"  whatever that means.

https://www.ebay.co.uk/itm/BSA-TACHOMETER-REV-COUNTER-CLOCK-3-1-RATIO-1966-70-A50-ROYAL-STAR-A65-LIGHTNING/161361928552