Chop's Garage - Quick Reference for Big Twin Models 1971-2004

		SPARKPLUGS			SPROCKETS		TIRES
Model	Battery	Accel	Champion	Chain/Belt	Front	Rear	Front	Rear

1966-74 FLH;	YHD-12	Y2401P	J12YC	530 x 102	22T	51T	130/90-16	130/90-16
1974-82 FLH/C	YHD-12	Y2401P	J12YC	530 x 102	22T	51T	130/90-16	130/90-16
1980-84 FLT/C/U;	Y50-N18L-A	Y2410P	RN12YC	529 X 110	22T	51T	130/90-16	130/90-16
1983-84 FLHT/C/U	Y50-N18L-A	Y2410P	RN12YC	530 X 110	22T	51T	130/90-16	130/90-16
1985-96 FLT/C/U;	Y50-N18L-A	Y2410P	RN12YC	136T	32T	70T	130/90-16	130/90-16
1985-96 FLHT/C/U;	Y50-N18L-A	Y2410P	RN12YC	136T	32T	70T	130/90-16	130/90-16
1987-94 FLHS;	Y50-N18L-A	Y2410P	RN12YC	136T	32T	70T	130/90-16	130/90-16
1994-96 FLHR	Y50-N18L-A	Y2410P	RN12YC	136T	32T	70T	130/90-16	130/90-16
1982-84 FLH/C	YHD-12	Y2410P	RN12YC	126T	32T	70T	130/90-16	130/90-16
1997-98 FLHR	YB-30LB	T2410P	RN12YC	139T	32T	70T	130/90-16	130/90-16
1997-98 FLHT/C/U;	YB-30LB	Y2410P	RN12YC	139T	32T	70T	130/90-16	130/90-16
1998 FLTR/I	YB-30LB	Y2410P	RN12YC	139T	32T	70T	130/90-16	130/90-16
1999-2004 FLHT/C/U,	YB-30LB	Y2418P	RA8HC	139T	32T	70T	130/90-16	130/90-16
FLTR/I, FLHR	YB-30LB	Y2418P	RA8HC	139T	32T	70T	130/90-16	130/90-16
1980-83 FXWG;	YB16-B-CX	Y2410P	RN12YC	529 X 102	23T	51T	MH90-20	130/90-15
1984-85 FXST/C	YB16-B-CX	Y2410P	RN12YC	530 X 102	23T	51T	MH90-21	130/90-16
1986-90 FXST/C;	YB16-B-CX	Y2410P	RN12YC	132T	32T	70T	100/90-21	130/90-16
1988-90 FXSTS	YB16-B-CX	Y2410P	RN12YC	132T	32T	70T	MH90-21	130/90-16
1991-92 & 94 FXST/C	YB16HLA-CX	Y2410P	RN12YC	132T	32T	70T	MH90-21	130/90-16
1993 FXST/C, FXSTS	YB16HLA-CX	Y2410P	RN12YC	128T	32T	61T	MH90-21	130/90-16
1995-96 FXST/C, FXSTS	YB16HLA-CX	Y2410P	RN12YC	130T	32T	65T	MH90-21	130/90-16
1997-99 FXST/C, FXSTS	YTX20L-BX	Y2410P	RN12YC	130T	32T	65T	MH90-21	130/90-16
2000-04 FXSTS/C, FXSTS	YTX20L-BX	Y2418P	RA8HC	135T	32T	70T	MH90-21	130/90-16
2000-04 FXSTD	YTX20L-BX	Y2418P	RA8HC	135T	32T	70T	MH90-21	160/70-17
1991-92 & 94 FXSTS	YB16HLA-CX	Y2410P	RN12YC	132T	32T	70T	MH90-21	130/90-16
1986-90 FLST/C/F/N	YB16-B-CX	Y2410P	RN12YC	132T	32T	70T	130/90-16	130/90-16
1991-92 & 94 FLST/C/F/N	YB16HLA-CX	Y2410P	RN12YC	132T	32T	70T	130/90-16	130/90-16
1993 FLST/C/F/N	YB16HLA-CX	Y2410P	RN12YC	128T	32T	61T	130/90-16	130/90-16
1995-96 FLST/C/F/N	YB16HLA-CX	Y2410P	RN12YC	130T	32T	65T	130/90-16	130/90-16
1997-99 FLST/C/F/N	YTX20L-BX	Y2410P	RN12YC	130T	32T	65T	130/90-16	130/90-16
2000-04 FLST/C/F/N	YTX20L-BX	Y2418P	RA8HC	135T	32T	70T	130/90-16	130/90-16
1971-74 FX	YB7-A	Y2401P	J12YC	530 X 102	23T	51T	100/90-19	130/90-16
1975-78 FX	YB7-A	Y2410P	RN12YC	530 X 102	23T	51T	100/90-19	130/90-16
1973-74 FXE	YB16-B-CX	Y2401P	J12YC	530 X 102	23T	51T	100/90-19	130/90-16
1975-84 FXE; 1979-82 FXEF;	YB16-B-CX	Y2410P	RN12YC	529 X 102	23T	51T	100/90-19	130/90-16
1977-82 FXS	YB16-B-CX	Y2410P	RN12YC	530 X 102	23T	51T	100/90-19	130/90-16
1980-82 FXB,	YB16-B-CX	Y2410P	RN12YC	126T	32T	70T	100/90-18	130/90-15
1983-85 FXSB	YB16-B-CX	Y2410P	RN12YC	126T	32T	70T	100/90-19	130/90-16
1984-86 FXWG	YB16-B-CX	Y2410P	RN12YC	126T	32T	70T	MH90-21	130/90-16
1982-84 FXR/S;	YB16-B-CX	Y2410P	RN12YC	529 X 110	23T	51T	100/90-18	130/90-15
1983-84 FXRT	YB16-B-CX	Y2410P	RN12YC	530 X 110	23T	51T	100/90-19	130/90-16
1982-94 FXR/S;	YB16-B-CX	Y2410P	RN12YC	136T	32T	70T	100/90-19	130/90-16
1985-92 FXRT	YB16-B-CX	Y2410P	RN12YC	136T	32T	70T	100/90-19	130/90-16
1999 FXR/S	YB16-B-CX	Y2410P	RN12YC	133T	32T	65T	MH90-21	130/90-16
1987-94 FXLR	YB16-B-CX	Y2410P	RN12YC	136T	32T	70T	MH90-21	130/90-16
1991-96 FXD/L;	YB16HLA-CX	Y2410P	RN12YC	133T	32T	70T	100/90-18	130/90-15
1995-96 FXDS	YB16HLA-CX	Y2410P	RN12YC	133T	32T	70T	100/90-19	130/90-16
1997-98 FXD/L; CONV	YTX20L-BX	Y2410P	RN12YC	133T	32T	70T	100/90-19	130/90-16
1999-2004 FXD/LF	YTX20L-BX	Y2418P	RA8HC	133T	32T	70T	100/90-19	130/90-16
1993-96 FXDWG	YB16HLA-CX	Y2410P	RN12YC	133T	32T	70T	MH90-21	130/90-16
1997-98 FXDWG	YTX20L-BX	Y2410P	RN12YC	133T	32T	70T	MH90-21	130/90-16
1999-2001 FXDWG	YTX20L-BX	Y2418P	RA8HC	133T	32T	70T	MH90-21	130/90-16
1999-2004 CONV;	YTX20L-BX	Y2418P	RA8HC	133T	32T	70T	100/90-19	130/90-16
2000-04 FXDX/FXDXT	YTX20L-BX	Y2418P	RA8HC	133T	32T	70T	100/90-19	130/90-16
2002-04 VROD(tm)	YTX20L-BX	-	-	150T	30T	72T	120/70-19	180/55-18

Quick Reference for Sportster Models 1971-2004
		SPARKPLUGS			SPROCKETS		TIRES
Model	Battery	Accel	Champion	Chain/Belt	Front	Rear	Front	Rear

1971-78 XLH	YHD-12	Y2402P	RH8C	530 X 106	21T	51T	100/90-19	4.50-18
1971-78 XLCH	YB7-A	Y2402P	RH8C	530 X 106	21T	51T	100/90-19	4.50-18
1979-85 XLH	YB16-B-CX	Y2413P	RL82YC	530 X 106	21T	51T	100/90-19	130/90-16
1983-85 XR1000	YB16-B-CX	Y2412P	RN7YC	530 X 106	21T	51T	100/90-19	130/90-16
1986-91 XL883; 1986-87 XL1100;	YB16-B-CX	Y2418P	RA8HC	529 X 106	21T	48T	100/90-18	130/90-15
1988-90 XL1200	YB16-B-CX	Y2418P	RA8HC	530 X 106	21T	48T	100/90-19	130/90-16
1991-96 XL1200	YB16-B-CX	Y2418P	RA8HC	128T	29T	61T	100/90-19	130/90-16
1992-96 XL883	YB16-B-CX	Y2418P	RA8HC	128T	27T	61T	100/90-19	130/90-16
1996 1200C	YB16-B-CX	Y2418P	RA8HC	128T	29T	61T	MH90-21	130/90-16
1997-03 XL883, XL1200	YTX20L-BS	Y2418P	RA8HC	128T	27T	61T	100/90-19	130/90-16
1997-03 XL1200C;	YTX20L-BS	Y2418P	RA8HC	128T	27T	61T	MH90-20	130/90-15
1999-03 XL883C	YTX20L-BS	Y2418P	RA8HC	128T	27T	61T	MH90-21	130/90-16
2002-03 XL883R	VTX20L-BS	Y2418P	RA8HC	128T belt	29T	61T	MH90-19	130/90-16
2004 XL1200R	VTX20L-BS	Y2418P	RA8HC	137T belt	29T	61T	MH90-19	150/80-16
2004 XL883	YTX20L-BS	Y2418P	RA8HC	137T	27T	61T	100/90-19	150/80-16
2004 XL883C, XL1200C	YTX20L-BS	Y2418P	RA8HC	137T	27T	61T	MH90-21	150/80-16