Code de couleur utilisé depuis 1958					Utilisation
	Rate - lb/in	Couleur	Utilisé			Pre-unit models
	90	yellow/white	1955-62			Année	Utilisation
	100	green/green	1958-67			1954-56	130 standard, 150 sidecar, 90 road racing, 110 option
	100	plain	1957-59			1957	110 standard, 150 sidecar, 90 road racing, 130 option
	100	chromed	1969			1958-62	100 standard, 150 sidecar, 90 road racing, 110 and 130 option
	100	chromed	1971-72
	110	purple/blue	1955-62			Unit models
	110	red/red	1960-68			Année	Utilisation
	110	chromed	1971-72			1957-59	100 standard
	130	red/yellow	1954-62			1960-68	350 and 500 - 130 standard, 110 and 145 option
	130	red/orange	1960-68			1963-66	6T and T120 - 145; TR6 - 100
	145	blue/yellow	1960-68			1966	USA T120 - 100
	145	chromed	1969-70			1967	TR6 and T120 - 145; TR6C, TR6R, T120R, T120TT - 100
	150	blue/red	1955-62			1968	TR6 and T120 - 145
						1969	145 chromed for unit 650s and T90, T100S, T100T; 100 chromed for T100C and T100R
						1970	All models - 145
						1971-72	500 - 100; 650 - 110