Aluminum Screw Hole Diameter: M6 x 1.0 Adjust nut that adjusts the play of drive chain and improves the dressing up effect. The design allows you to easily turn it with your fingertips. Excellent in maintenance because tools are unnecessary when adjusting. Aluminum material is machined and anodized finished. You can select from four colors: Silver, Blue, Gold and Red.
Takegawa Chain Adjustment Nut (2Pcs)