Mountain Bike Chain Guide 30-40t-Iscg 05 Bmx Single Ring Road Bike Ring Installation (Red)

High strength material, wear and resistance to deformation.Adjustable design, suitable for narrow width of 30~40T (round), 30~38T (oval).Extremely easy to install and adjust with a single hex tool, without removing your cranks.Exclusive design, solid chain, never drop a chain again.100% satisfied service, if you have any questions, please feel free to contact us, we will reply you as soon as possible and try our best to give you a great shopping experience. ...