# AP Racing double-circuit handbrake master cylinder, Ø 17.8 mm

> AP Racing handbrake master cylinder, Ø 17.8 mm, for double-circuit braking systems. Aluminum body, 2 × 12 mm stroke, and M10 × 1.0 connections.

- URL: https://www.gt2i.ch/en/master-cylinder-without-reservoir/45058-ap-racing-double-circuit-handbrake-master-cylinder-o-178-mm-3661768080603.html
- Reference: AP-CP6026-91
- Price: CHF 722.00
- Brand: AP RACING
- Availability: in stock

## Description

The AP Racing double-circuit handbrake master cylinder (Ø 17.8 mm), part number CP6026-91, is designed for dual-circuit hydraulic handbrake systems, particularly when diagonal brake separation must be maintained. Its dual-end construction allows both circuits to be actuated.
Technical Specifications
Brand: AP Racing.
Manufacturer Part Number: CP6026-91.
Range: CP6026.
Configuration: Double-ended.
Mounting: Rod ends at both ends.
Master cylinder diameter: 17.8 mm - 0.70 in.
Identification clamp color: BLUE.
Total stroke: 2 × 12 mm.
Hydraulic inlet: M10 × 1.0.
Hydraulic outlet: M10 × 1.0.
Stroke before supply shutoff: 0.69 to 1.09 mm - short.
Body material: Aluminum alloy.
Listed weight: 250 g.
Color-Coded Diameter Identification
AP Racing master cylinders come with a small colored plastic clamp fitted around the body to facilitate identification of their diameter. The part number and nominal diameter are also marked on the body.
The following table applies to push-type master cylinders. This part number has a BLUE clamp corresponding to 17.8 mm - 0.70 in.
ColorDiameter in mmDiameter in inchesBLACK / ORANGE14 mm0.551 inBLACK / RED15 mm0.590 inBLACK15.9 mm0.625 in - 5/8 inBLACK / YELLOW16.8 mm0.661 inBLUE17.8 mm0.70 inGREEN19.1 mm0.75 in - 3/4 inORANGE20.6 mm0.812 in - 13/16 inRED22.2 mm0.875 in - 7/8 inWHITE23.8 mm0.937 in - 15/16 inYELLOW25.4 mm1.00 inReplacement Parts and Repair Kit
Repair kit part number: AP Racing CP6025-91RK, sold separately.
Mounting and Connections
Install a dual-circuit hydraulic handbrake system compatible with the rod ends. Do not interchange the rods or internal components between the two ends or between multiple master cylinders.
Photo and Master Cylinder Selection
The photo shows the AP Racing CP6026 range and is not binding regarding the color of the identification clamp. To select the model suitable for your mounting, refer to the part number and technical specifications listed in this sheet.
Before ordering, be sure to check the master cylinder’s diameter, threads, and fastening type. If in doubt, our technicians can help you select the correct part number for your setup. Feel free to contact them.
Key Features
Dual-circuit: designed for dual-circuit hydraulic handbrakes.
Aluminum alloy body.
12 mm stroke at each end.
Mounted with rod ends.
Visual identification: BLUE clamp for the 17.8 mm diameter.

## Features

- Product type: 
- First word type: Master cylinder