Description: Mechanical disc brake calipers are made of high-strength aluminum alloy material, one-piece structure, durable Line Pull mechanical disc brake for F160/R140 or R160/F180 rotor discs Specially designed manual adjustment button, easy adjustment; standard disc brake disc 2 adjacent holes distance 2.2cm/0.87inch, diagonal 2 holes distance 4.4cm/1.73inch (only for specific models) Double-piston drive, the disc is not deformed, and the semi-metallic plate makes the brake stable and more wear-resistant Suitable for smooth power modulation and easy adjustment of mountain bikes, road bikes and folding bikes Specification: A-pillar spacing: 74.2mm/2.92inch B-pillar spacing: 51mm/2.01inch Disc brake F160 / R140: Suitable for the front wheel 160 # disk, rear wheel 140 # (generally installed front wheel more). Disc brake F180 / R160: Suitable for the front wheel 180 # disk, rear wheel 160 # (generally installed rear wheel more). Material: Aluminum alloy Package Includes: 2 Pieces disc brakes+2 Pieces brake cables+2 Pieces cable end caps+6 Pieces cable pipe caps+4 Pieces screws+1 Piece hexagon socket tool or 1 Piece Disc Brake + 1 Piece Brake Cable + 2 Pieces Wire End Caps + 2 Pieces Wire Tube Caps + 2 Pieces Screws + 1 Piece Hexagon Tool or 2 Pieces disc brakes+2 Pieces brake cables+2 Pieces cable end caps+6 Pieces cable pipe caps+4 Pieces screws+1 Piece hexagon socket tool+2 Pieces discs Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!