Arlen Ness Jagged Chain Drive Kit For Harley Touring Enhance your motorcycle's performance with this easy-to-install chain conversion kit, designed for a true bolt-on installation without the need for primary modifications. The kit includes precisely engineered 27T / 57T sprockets to maintain stock gearing, ensuring speedometer readings remain accurate after the upgrade. Features: Direct bolt-on design, 27/57 sprocket combination engineered to move chain over & around inner primary. Other chain drive conversion kits for 09-up FLT require grinding / fabrication Front Sprocket: 27 Rear Sprocket: 57 Sprockets feature lightweight drilled out design, design style found on Ness brake rotors Cush drive assembly CNC machined from billet aluminum Smooth feel & adds reliability when using high horsepower engines Works with both factory & aftermarket Cush Drive rear wheels Note: Installation requires a 530 chain with 130 links sold separately.