Chrome Plated Rocker Box Allen Screw Kit Fits 1957-76 Harley-Davidson Sportsters

there are lots of Knuckle engines still going strong

KDs have been around since the 1950's

At home on swingarm or rigid Sportsters (especially with a custom bolt-on Sportster gas tank) and wild choppers alike

Durable Construction

Primary Chain - 2007-2021 Harley-Davidson FLHT/FLHR/FLHX/FLTRX/FLTRU/FLTRK/FL Trike Gas Cap Type_Harley Thread-In Chrome Plated Rocker Box AllenDiamond Chain Company brand chains are known for their quality; they are OEM on many motorcycles. These endless link primary chains are perfect for replacing your worn chains. Made in the USA. See Additional Information below for fitment. Endless link Diamond primary chain Size 428 2 chain, 86 links Made in the U. S. A.