Internal throttle kit features a needle and ball bearing construction and the spring helps to return the throttle. This must be used with billet grips.
Kit uses three types of throttle bearings 5/32″ x 5/16″ x 1/8″ bearing, 3/8″ x 7/8″ x 9/32″ bearing, and a 5/8″ x 13/16″ x 5/8″ bearing and is for 1″ handlebars.