Big Twins 1936-69 PLAIN HEAD bolts (see P/N 9627-19 for correctly marked heads)

Perfect fit on Smith tachometers

The rear bracket can be flipped 180 degrees

CNC-machined 6061 T-6 aluminum construction

The right-side grip serves as a grip and throttle tube all in one and can be used with single or dual cable setups and with whichever throttle housing you choose

Aluminum Gas Filler Cap with Weld-In Steel Bung - Vented Length_2.09" Big Twins 1936-69 PLAIN HEADIncludes a weld in mild steel bung made for Lowbrow Customs gas oil filler caps. Just weld in the bung, thread the cap in and go! These universal filler caps are meant to be used for gas tanks on custom motorcycles, hot rods, or anything else. Lowbrow filler caps fit the maxim 'form follows function'; they are all business. Machined out of solid aluminum, these vented caps are 1 5 16" 12 thread and the Buna N O ring seal is gas and oil resistant and