my old dash clocks on the bay all work ok

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=180551192234&ssPageName=STRK:MESE:IT

Do you know the revolution per mile of the speedo (may be stamped on the back, probably 1000)?

Ta

Dan

[Edited on 23/8/10 by Bluemoon]

can't see anything on the back but on the face it say's 1000 don't know if that means anything thanks