The HF-M901L/R-FR08 is designed for 45km/h e-bikes. The mirror has a hollow design to decrease the weight and improve wind resistance. The body is made of fiber-reinforced nylon, and can fit 14.8~23mm inside the diameter of the handlebars. The mirror has three pivot joints which can be adjusted to any desired angle. Available in HD glass lens and Anti-glare blue lens.