Inner Primary Bearing/Seal Kit 25-3102 HD S3-Cat-SpareParts-Brakesystems-Brembofrontbrakecallipers Case-hardened and precision-ground needle bearings

Case-hardened and precision-ground needle bearings ensure low friction and high durability

Engineered to provide instant starts and smooth idling even after long periods of storage

High-density nylon bungs are designed to wear down and absorb energy during friction

Sprockets are manufactured from high-carbon steel to resist premature wear under high torque

Designed specifically for professional motocross applications where minimal rotating resistance is critical

Inner Primary Bearing/Seal Kit 25-3102 HD S3-Cat-SpareParts-Brakesystems-Brembofrontbrakecallipers Case-hardened and precision-ground needle bearingsALL BALLS starter motors are manufactured with all new components that have been fine tuned for starting the H D V twin engine. Our clutches utilize 20% oversize rollers, and the idler gears are manufactured from cold headed steel. End frames are cold chamber die cast and machined on precision fixtures. Armature hairpins are resistance fused to the commutator. All starters are supplied with a 10 32 threaded output shaft, and a conversion bolt for the