Electronic Tachometer

[toystory]

Trying to find a rev counter that looks like it is part of the bike, the sort on a bracket. Spent ages looking on ebay, I need the sort that wires around the HT lead. Nearly everything I have found is 12 volt negative earth, I need positive earth or battery powered. Thank you. 

[swm]

What about a Tiny Tach or similar ? Runs off internal battery , one wire to earth one wrapped round ht lead .
I have a Stage 6 which is wired in but this only powers the back light it runs off an internal battery and one wire round ht lead as above .

Cheers .