GZP 21T sprocket 1/2" offset BT86-06

These off-set sprockets are easy solution when you want to install a slightly wider tire without offsetting the primary or transmission. Fits 1991 to present XL Sportster and 1986-2006 5 speed Big Twin (except 2006 Dyna). These off-set transmission sprockets are available in 0.5" (12.7mm) off-set and .810" (21mm) off-set and in 21, 22, 23 or 24 tooth. The .810" off-set sprocket allows fitting of an O-ring chain as much outward as possible with the outer primary cover still in the original position. Work with 530 series chain.