More than 55 mph? It is safe?

Hi. The frame in my Ariel is almost finished. I would like to start the engine overhaul in January. Do you have any service data for this model?
What is the recommended clearance for JP pistons? What should be the clearance between valve and valve guide?

Have any of you fitted a larger carburettor ...

I will sell a tollbox for Ariel 1932-3?. The condition can be seen in the photos. Overall good, but requires filling or improving the surface of the sheet metal. 160EUR or best offer.

The back has already been sold.

For sale is the front part of frame for a 1928 Ariel. The price for what you see is 200EUR.

Sold.

For sale Lucas DU142 headlamp. EU shipping 20GBP. Price 430GBP or best Offer.

Owner of FN motorcycle number ST 9389: Teyhman Sigmund, lived in Stanisławów, 5 Grunwaldzka St.

Hello,
I hope I can help a bit. The photo was taken in Poland, in the town of Stanisławów (today Ukraine: 15 Ivana Franka St
Ivano-Frankivsk). Marked as 1 is Jan Gutt's clinic and fire brigade garages, point 2 is the vicinity of high school no. 5 and tennis courts.
339095186_191899083597876 ...

I'm trying to order spokes for my Cammy and have a little problem. Not all spokes are original on my bike.
Parts Catalog says:

Front:
4543-32: 8 1/2x10Gx80°
4541-32: 6 3/4x8Gx80°
Rear:
4546-32: 6 1/2x8Gx80°
4547-32: 8 5/8x10Gx80°

The spokes I have have 90°and only, short in the front wheel 80 ...

Could you send me more details and fotos by PM?