Since the mid 1970es the name PBI stands for high quality sprockets. After precise manufacturing the transmission sprockets are electroless nickel-plated against corrosion. Electroless plating provides a uniform deposit thickness, disregarding the shape of the plated object.

Nut; for Transmission sprocket / Pulley; fits Sportster 1993-2020, Big Twin 1993-2006; steel; thread: 1-1/2”-24 LH; replaces OEM HD 35211-91; USA; gross weight: 60 g

The Alpha type chain by Tsubaki is smooth running with a minimum of power loss combined with the benefits of X-sealed inside lubrication that provides a longer chain lifespan. A great chain for hi-torque, hi-horsepower performance bikes. Available as Alpha XRS in plain steel and RQ2 with gold coloured outer links. Same chain, same quality.

The Delta QRN 530 is a non-sealed high quality roller chain. The bushings between roller and rivet are made from sintered metal and oil impregnated (HSL), which in turn results in longer service spans. The side plates are nickel-plated for corrosion protection and good looks.