Triumph Pre-Unit STAINLESS Engine Bolt SET 500 650 Rigid to '53 BSA Electrical Norton's part numbers are 06-2592

Norton's part numbers are 06-2592 and 06-2514

Ratio is 20/10

and possibly early twins

to suit all 441 BSA Victor SS street models

Triumph Pre-Unit STAINLESS Engine Bolt SET 500 650 Rigid to '53 BSA Electrical Norton's part numbers are 06-2592Perfect and lovely, to suit all rigid frame Triumph (through 1953) except the dirt oriented 5T. These are the bolt assemblies that hold the engine into the frame plates. Exact copies of the factory hardware, and fabricated in rust free, tarnish free stainless steel. Part numbers are noted and include a copy of the factory fitment schematic. Supplied with thread lubricant. A kit to suit later frames (54 59) is available in another listing