Good find ! yes, 1954 but the round badge did not make it in to the catalogue .

In the latest Cheval on page 8 there is a interesting Ariel. Seen dangling in ropes is a swingarm Ariel with what looks like a VHA engine. VHA full swingarm .jpg Upon second look this Ariel has the new for 1953 earles swingarm front fork. Ariel1953BasicPamphlet2.jpg The article by Mike Priestner tel...

Peters Classic Bike Parts in the Netherlands.
He also has the narrower size for the '28 (and other years) clutch

https://pcb.shopfactory.com/contents/nl/p2934.html

You should have been at the recent Sloper rally,

seen Klaus in pictures at the sloper rally, did you two not meet there ?

puzzeld

On my NG I silver soldered a threaded connector + a flex pipe from - I think- something used for pneumatics.
works well for over 15 years now.
Or if you want a even quicker disconnector use one from Festo like these :

hello Joe and welcome to this forum. re. the gauge; Apart from the gauge itself being broken (?) Oil pressure in a single only shows when there is a non return valve fitted behind the oil pump. it consist of a spring , ball and plug, they go in in that order. oil Burney (1).JPG singlebottom - kopie....

Have fun !

see pics. the color pic from Dave Barkshire's book shows a -sort of- 1927 striping on a 1928 tank. The 1928 striping was not so elaborate, just a horizontal straight line broken at the headstock opening. It's up to you, study old pictures and look at what others did. tank lining 27-28 (3).jpg 1927 :...

with a tele you can use the bottom legs from a BSA front fork.
for a girder I dont know, probably a 'thin' spindle with a sleeve, not a step.