Motorcycle chain lube adapter for 520 chains

An aerosol adapter with a 3.9mm stem for lubricating size 520 motorcycle chains.

The width has been slightly increased, and the guides have been smoothed for better chain movement.

Just in case, check that the holes have been printed correctly with a 0.8mm paper clip. I printed with PETG, which works fine; narrower models tend to jam when feeding.

P.S. No supports is needed, just add and print in place (size calibration adviced).