New-Style ESR Auto-Adjusting Chain tensioner

New-style auto adjusting chain tensioner guide for all ESR750 and ESR750EX electric scooters. Featured on 2008 ESR750 / ESR750EX models; retrofittable to ANY earlier ESR750 / ESR750EX. PMW part # 216130012.

Hardware with the part is 20mm bolt, washer, metal tube, spring and metal screw.