Is the gauge connected

No connection to me.

Looks to have the right bits

https://www.yeomansmotorcycles.com/Arie ... el-HS.html

Ask Lee Mallabone

Looks similar to an Ariel from 28, which were 7 "

Nice 1934,if only I had room

Visiting the oldest pub in Wales, I'm going to check the route it's nearer 115 miles , don't want to scare oneone off

Don't forget the side valve rally in June, details in cheval, non side valve bike are acceptable.
Route planned just over 110 miles with stops.

Dave

Don't forget the air is thicker below sea level in South Holland

I've suffered with a wireless unit with a mag ,so it went in the bin, my 1927 model with an old cycle speedo regularly saw 100 kph

Grease is less likely to leak from the speedo drive