Triumph Bonneville

creating an efficient and durable hinge pin

designated by the original Harley-Davidson OEM numbers: brake light switch 72004-39

The Biltwell Macho Negro ('cause it is tough and black) seat pivot features a cast head and chromoly body giving the ultimate in style and durability

Norton and other motorcycles with 7/8" bars such as Yamaha xs650 and Honda cb750

Threaded Steel Bungs 1 inch long - 1/4-20 thread - 4 pack Made in the USA_Yes Triumph BonnevilleThese threaded steel bungs are 3 4" diameter and are drilled and tapped all the way through with 1 4" 20 thread. 1" length. They are 1018 cold rolled steel for easy welding and are great for mounts of all sorts. Sold in four packs. Made in Ohio, USA.