They are marked 27/27 and measure 24mm at the opening to about 27mm inside for handlebar internals.
These are NOS (New Old Stock), brand new in the package originally made back in the 1960s. These grips were popular on all Italian made motorcycles especially Vespa and Lambretta scooters. They will fit 7/8 handlebars.These are Brand New Old Stock and have been sitting in a warehouse for the last 30 plus years.
