Features: 1.Fitment: Replacement for Hammerhead model 80T go karts, replacement for TrailMaster Mid 6.000.305 XRS XRX go karts, replacement for American Sportworks mid size. 2.Characteristic: This master cylinder has one port for the rear brake caliper, the total length of the base is 4 1 or 4in or 10.8cm, installation bolt spacing is 1 3 or 4in or 4.45cm. 3.Premium Material: Hydraulic brake master cylinder reservoir assembly is made of aluminum alloy material, which is rustproof and high temperature resistance. 4.Dependable to Use: With elaborate manufacturing technology, has high reliability and stable performance. 5.Easy Operation: Simple installation, no complicated operations, direct replacement and installation, convenient to use. Specification: Item Type: Go Karts Brake Master Cylinder Material: Aluminum Alloy Size: Total Length of the Base: 4 1 or 4in or 10.8cm, Installation Bolt Spacing: 1 3 or 4in or 4.45cm Installation Location: Brake System Installation Method: Replacement Installation Fitment: Replacement for Hammerhead model 80T go karts Replacement for TrailMaster Mid 6.000.305 XRS XRX go karts Replacement for American Sportworks mid size, and many other Chinese brands