Modern Vespa

Has anyone found a smallish round rev counter that works on the PX, I,d like to sink one into the top of the glove box but cant seem to find one.

Trailtech makes one. You can buy it through their website or Amazon store.

Have you used one MJ.

Think you want something like this, https://www.ebay.com/i/332514518214?chn=ps
About the size of a small box of wood matches.

I use them on my small engines.

https://www.amazon.com/Trail-Tech-742-A00-Surface-Tachometer/dp/B01GTP6ORC/ref=mp_s_a_1_2?ie=UTF8&qid=1548690486&sr=8-2&pi=AC_SX236_SY340_QL65&keywords=trail+tech+tto&dpPl=1&dpID=41HiWxTJjnL&ref=plSrch

I have this one. Real simple gauge. It has one wire that you wrap around the HT lead. I use it for breaking in my motors after rebuilds. It's cheaper on Amazon through Trailtechs store than it is on their website for some reason.

Cant find either of these in England, they come up on ebay in the states, P&P on one of them was $62 Sacre Bleu.

Look up shipping from California to you. If you like the shipping price plus the $30 from Amazon, I'll buy one and then ship it to you.

That's very kind of you MJ but I,d rather buy one over here just incase of faults, I,v already bought a faulty one but got a full refund, thanks again though.

How about a Monkey Bike tachometer?

https://picclick.co.uk/Hour-meter-Rev-counter-with-replacable-battery-401234590966.html

I bought two here in Indonesia but the post would be prohibitive.

Edit: here's a better? one 9 quid https://picclick.co.uk/Motorcycle-Refit-Tachometer-Pointer-with-Backlight-Stainless-Steel-332977930933.html

The second one looks ok, not sure it would work on a PX though, do you know anyone who runs one on a Vespa PX Mike.

There is a niggle in the back of my mind now about the two-stroke aspect. As there is not selection for 4 or two

How about broadening your search to Karting tachometer as karts use two stroke engines.

https://www.google.com/search?safe=strict&client=firefox-b-ab&biw=1366&bih=619&tbm=isch&sa=1&ei=zP1QXMrWAcLavgTjwo7QDA&q=Kart+tachometer+UK&oq=Kart+tachometer+UK&gs_l=img.3...525795.526674..527179...0.0..0.214.535.0j2j1......1....1..gws-wiz-img.......0i5i30.Q8gEp4gtDE4

https://www.ebay.co.uk/itm/RPM-Rev-Tachometer-Counter-With-Holder-UK-KART-STORE-/361358967881

OR

https://www.ebay.com/itm/CUENTAVUELTAS-CUENTARREVOLUCIONES-MONTESA-SCORPION-RAPITA-50-TACHOMETER-/151127580134?hash=item232fe7dde6

https://www.ebay.com/itm/MONTESA-KING-SCORPION-TACHOMETER-/150731256312?vxp=mtr&hash=item23184871f8

This one you highlighted would do Mike.
https://www.ebay.co.uk/p/SEARON-Backlit-Digital-Tach-Hour-Meter-Tachometer-for-Small-Engine-Boat-Lawn-ATV/605465466?iid=223313319548

OK.
Sometimes in life one has to broaden one's search pattern.

and i missed so much time to hang out while u in Indo

I'm just as guilty as you!!

lets spend time this weekend, i wanna see ur rev counter

I didn't fit it yet. Have to run the wiring through the floor etc..

I've used Tiny Tach in the past (https://www.tinytach.com). Worked well, but no back-light, and the batteries are not replaceable. They tend to last a couple of years. I mounted on top of the glove box, ran the wire through the glove box, and then on top of the floorboards, but covered over with a rubber floor mat. One issue is that to run the wires through the hole in the glove box you need to cut the wire and then mend it when you have it fed through.

Amazon. ..... search tachometer there's loads ...... back lit digital for about 20quid 😉😊