Im after an 80mm electronic speedo, needs a black dial but with white numbers and a white pointer. Anywhere you would recommend to buy one from ?

It needs to be electronic so can someone point me in the right direction as far as what i need, im thinking along the magnets on the propshaft type of sender but do i need anything else too ??

Also, are they easy to calibrate, it will be going on a marlin roadster which is built on a marina 4 speed box and back sxle (anyone know what the diff ratio is on these ?)

Lots of questions i know !!

Regards Andy

vdo vision, like westfield use in standard dash.
easy to programme, work with hall effect sender on drive shaft or prop.

ETB?

I'd suggest Greengauges. Not too expensive and fully adjustable (re colours etc).

I'd recommend ATB/Racetech speedos but they're a PITA to set-up and won't work off magnets. You'll end up getting a trigger wheel laser'd up like I did (after many hours of mental anguish....).

I'd also recommend Greengauges - good service & back-up. They also have good setup and calibration instructions online for preview.

LINKY