This the of the few full metal gauges for bicycle pumps available today. In updating this part for the new SILCA, we reinforced some of the internals to improve shock resistance.
The internal mechanism uses a diaphragm where the needle is stabilized with a beautifully polished steel plate. The gauge face itself was originally hand drawn by Claudio's son who is a cartoonist in Milan.
Nice piece. My old one has been broken for years. This one did the trick! Thanks
Overall experience was excellent.
Seems accurate, larger and easier to read than the original on my 80"s Pista. With a new piston gasket, the classic is back in service.