All Balls Racing Starter Clutch with Bearing. Fits Big Twin 1989-1990.

Description

Features & Benefits:-

* Utilizes 20% oversize rollers for improved performance under hard starting conditions

* Replaces OEM # 31544-90

Tech Tips:-

* Advanced timing, High Compression, & Increased cubic capacity can cause failure of Ring Gear, Pinion Gear teeth & Starter Clutch

* Electronic or Manual Compression Releases are options for decreasing compression during start-up on Shovel & Evo Engines.