Feature:1. Priceperformance ratio is quite outstanding, and it is a good choice for riders who are pursuing highcost performance. Universal mounting handlebar has a diameter of 22.2mm / 0.9in with high adaptability.2. Using new aluminum alloy + plastic material, lightweight design, durable, mountain aluminumplastic handlebar, extended handle, flexible use.3. Gear shifting, easy adjustment, finetuning the brakes, the lines are tight and not slippery.4. 3 x 10 30speed left and right handles, left hand dial 3 speed, right hand dial 10 speed.5. Easy to operate, the bicycle gear can be quickly installed and disassembled.Specification:Item Type: Speed Change BrakeMaterial: Aluminum Alloy + PlasticLeft-Hand Dial 3-Speed Size: Approx. 130 x 77mm / 5.1 x 3inApplicable Installation Diameter: Approx. 22.2mm / 0.9inWeight: Approx. 272g / 9.6ozProcess: Electrophoresis ProcessApplication: Mountain BikeFeatures: Responsive Braking And Gear Shifting, Fast Braking, Improving Riding Safety..Package List:1 x Left Speed Change Brake1 x Right Speed Change Brake