The outside diameter (OD) of these exhausts is 1

It is designed to holds your carb in place without putting pressure on your intake seal to help prevent intake leaks

These high quality rear fenders feature a flared duckbill and subtle stamped branding

These can be used with either short or tall risers and come with a knurled clamping area

Fits almost all tappet screen plugs and oil pumps plugs

Complete Motor Gasket Kit - Sportster 900cc 1957 - 1971 Shape_Custom The outside diameter (OD) ofComplete Motor Gasket Kit with coated head gaskets. Fits 1957 1971 Harley Davidson 900cc Sportsters. James Gaskets are known world wide for their close attention to quality and fit. Made in the USA.