Harley Davidson motorcycles with ABS brakes (2008 -current) require one ABS bearing per wheel and one non ABS bearing per wheel
2000-2001 touring models utilize 3/4" rear wheel bearings
2000-2007 touring models utilize 1" front wheel bearings.
2002-2007 touring models utilize 1" rear wheel bearings
2008+ touring models utilize 25mm bearings front and rear. If you have ABS brakes 1 ABS bearing per wheel is required. 2014+ touring models with bigger than stock front wheels require an ABS compensating bearing for the size wheel you are running (21+)as opposed to a standard ABS bearing. The rear wheel uses a standard ABS bearing.
2000-2006 Softails utilize 3/4" bearings front and rear
2007 Softail's utilize 25mm front bearings and 3/4" rear bearings
2008 + Softails's utilize 25mm bearings front and rear except the Cross Bones. The Cross Bones is 3/4" front and 25mm rear bearings. For 2015+ softails with ABS brakes and a larger than stock front wheel the ABS compensating bearing is required.
2000-2003 Dyna's utilize 3/4" bearings front and rear
2004-2005 Dyna's utilize 1" front bearings and 3/4" rear bearings
2006-2007 Dyna's utilize 1" bearings front and rear
2008 + Dyna's utilize 25mm bearings front and rear. If you have ABS brakes 1 ABS bearing per wheel. For 2016+ FXDLS with ABS and a larger front wheel an ABS compensating bearing is required in the front wheel.