Mechanical Brake Caliper Description: Brand: BUCKLOS Braking System: Line Pulling Mechanical Disc Brake Components: Disc Brake Material: aluminum alloy Use: Mountain Bikes/Road Bicycles Disc Brake Size:160mm Color: Black Weight: about 399g(front&rear) Gift:4*bolts(1pair) The adapter is the International standard (51mm) & Post Mount (74mm) Brake Cable Description: Brand: BUCKLOS Material: PVC + Stainless Steel Colour: Black Length: Front-43.3inch ; Rear-66.9inch(hose 98.4 inches) Weight: About 166.4g Suitable: road bike/mountain bike (universal).