Harrison "Billet" brakes are famous for their impressive stopping power. Their pulley brake system is in fact a pulley with two disc rotors bolted to each side of it and uses a special version of their 4-piston Slimline caliper. Comes complete with a 70 tooth belt sprocket for use with 20mm, 1", 1 1/8" or 1 1/2" belt. Belt sprocket has 2.22" (56.4mm) inner diameter for use with 2000 to present style rear wheels. Caliper bracket has a 1" diameter axle hole which can also be used for 25mm wheel axles. Originally designed for use on Softail models, but also great for many custom applications. Must be spaced out for use with 3/4" (19.05mm) wheel axles. Harrison Billet pulley brakes are built to order, please allow for a 3-4 weeks delivery time. Available in polished or black anodized finish.