ITEM NAME:21 Speed Bicycle Shifter Brake Conjoined DIP Derailleurs Mountain Bike Hand Product Description Description: Features: Suitable for MTB / city car / recreational vehicle / road car / folding Shift line is usually made of metal alloys softness. Standard configuration is the product has own speed steel wire core, radio tubes Left 3 and right 7, 21-speed Specifications: Color: Black Model: 21speed Installation aperture: 22.2mm Weight: 355g Included: 1 X Pair of  Shifter Brake.Included: 1 X Pair of Shifter Brake. Left 3 and right 7, 21-speed. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.
