Specification:
Roller Material: Nylon Polyurethane
Length: 64mm
Installation Hole Inner Diameter: 14mm
Roller Inner Diameter: 12.2mm
Roller Inner Width: 17.9mm

Features:
100% brand new and high quality
1. Heavy duty chain roller tensioner with upgraded spring, thicker wire and longer travel.
2. It protects swing arm & helps guide chain correctly.
3. This listing is a brand new Chain Roller Tensioner Kit. It is necessary for all serious riders.
4. It ensures proper chain tension and alignment. It prevents the chain derailment, excess wearing of the sprocket and prolongs chain's life.
5. If you don't have the proper chain tension, the chain will get lose or break. Eventually, it will damage the side cover and the stator plate.

Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100%
Package Included:1 set of Chain Tensioner