STEPPED Norton Commando STAINLESS Muffler Mount Plate SET 750 850 peashooter Triumph Chassis Both rod and nut are

Both rod and nut are 1/4" x 28tpi

They are suitable for any hydraulic brake caliper fitted to the last Norton Commandos of about 1972-on

Rear bolts 3/8" x 4

They're a fair amount smaller than the jumbo things Guzzi used as original

While the Athena sets are probably better

STEPPED Norton Commando STAINLESS Muffler Mount Plate SET 750 850 peashooter Triumph Chassis Both rod and nut areWith special 'stepped' muffer plates, similar to mounted prototype in 2nd photo. This kit should fit ALL Commando with peashooter mufflers. The plates are mirror polished and these lovely parts are LIGHT YEARS beyond what Andover Norton is currently supplying. Includes the full set shown, part numbers below, ALL in STAINLESS STEEL: 06 1720 Main Plate x 2 06 1721 S Muffler Plate x 2 06 1722 Footrest Plate x 2 06 0471 Footrest Spacer x 2 Lovely stuff!