8 mm Pulley Tensioner Chain Roller, Keenso Chain Roller Slider Tensioner Wheel Guide for Motorcy Pit Dirt Mini Bike Atv (Red) Auto Tuning

【Convenient Use】-- The chain roller wheel complete with heavy duty bearings very easy to use 【Strong Function】-- Specially designed with the swing arm; the chain then runs over it to keep it aligned 【Suitable Fitment】-- Inner diameter: 8 mm, can also be used on gas petrol motorized conversions kits 【Good Quality】-- This Pulley Chain Roller is made from the high quality materials, sturdy and for long time service 【Warm Prompt】-- 8 mm Inner Diameter, Please check the size and confirm this chain roller meet your need