- Joined
- Jun 30, 2012
- Messages
- 13,128
I used chronometric tachos for years. Vibration usually kills them. The RG250 item is rotating magnet, and the mount is beautiful, and visually correct for the era. (I'm presuming the International is a mid-fifties bike, not a garden gate model ?) I wouldn't run any OHC Norton without a tacho, it is too easy to lose track of the revs, and destroy the valuable motor. I was once offered an Inter motor for sixty Australian pounds, these days it would cost 250 times that for a replica. You would probably be stuck with buying a Summerfield manx motor anyway.