AP Master Cylinders

Items Ordered:
Cart Value:

Harris Performance Online - Parts for Pros!

Online Catalog > Brakes, Upgrades and Accessories > AP Racing Brake Components > AP Master Cylinders

AP RACING Original Adjustable Ratio Master Cylinder
The original adjustable ratio master cylinder used by GP and Superbike teams in the 80’s. Can be used to upgrade any brake system. Available for single or twin brakes with a left hand version for clutch actuation. Available with integral reservoir only.

Features:

- The original adjustable ratio brake master cylinder can be used to upgrade any brake system.

- Incremantal ratio adjustments, Ratio is 6.4 - 9.34:1.

- Supplied with integral fluid reservoir.

- Effective Bore Size 16mm to 19mm

- Actual Bore Size 19mm (0.74")

Price: £192.28 (Excluding VAT at 20%)

AP RACING Classic Front Master Cylinder
Re-introduced to satisfy demand generated by restoration and classic racing series.

Features:

- The original "Classic" master cylinder.

- Aluminium alloy body and cap.

- Suitable for single or twin disc applications.

- Integral fluid reservoir.

Manufactured from high quality castings.

- Replaces CP2215-20.

Price: £316.57 (Excluding VAT at 20%)

AP RACING ADJ RATIO BRAKE MASTER CYLINDER AP RACING BRAKE CONVERSION KITS
Harris Super Bikes;
R1 02,

This unique design of the CP4125 pull type handlebar master cylinder provides the user with the ability to adjust the ratio and the lever position as required. The single chamber configuration allows the compact design to weigh only 320grams, and is now non handed to allow it to be used as a clutch master cylinder. This master cylinder is used by top GP and Superbike teams. Use with remote fluid reservoir (not supplied)

Features:

- Single chamber configuration.

- Incremantal ratio adjustments, Ratio is 6.88 - 14.45:1.

- Adjustable lever position.

- Reverse for use as clutch master cylinder.

- Use with remote fluid reservoir. (not supplied)

Typical Applications:

- Moto GP, Superbikes & Road.

Assembly Part Numbers:

- CP4125-26 (17mm to 20mm effective bore).

Ratio Adjustments Guide.

This variable ratio master cylinder has a knulled wheel to adjust the ratio. This adjuster is rotated to increase or decrease the lever ratio.

Technical Specifications & Notes.

- Master Cylinder will be supplied with the wheel adjuster set at position 0 ( i.e. with the fulcrum point at end of guide slot in lever, nearest to end of the handlebars, as drawn) at this setting piston travel is at its maximum, which will give best conditions for bleeding the brake system. Typical working stroke is shown as a guide only, working stroke should be set to riders preference. After initial setting only small adjustments, typically ±1 turn should be necessary to suit differing conditions. The ratio adjuster wheel has a detent mechanism allowing it to be moved ¼ turn per click. No locking of the mechanism is required. Lever travel will usually increase slightly in dynamic applications over static settings due to disc run-out etc. it is therefore advisable to set lever feel on the hard side for initial test.

- Master Cylinder will be supplied with the lever reach set at the nominal position as drawn. To obtain a longer reach the adjuster should be turned anti-clockwise using the reach adjuster wheel to suit riders preference. Conversely the adjuster can be turned clockwise to give a shorter reach. Adjustments should be made in ¼ turn increments, but should not be set between detents positions. The correct lever reach should be established prior to any adjustment to the lever ratio using the wheel adjuster.

- Outlet fitting is not supplied with assembly as standard, but Tecalamit or Aeroquip are available on request.

- To remove lever sub-assembly, take the Master Cylinder off the handlebar, then set wheel adjuster in position 0. Knock out spring and remove the lever reach adjuster wheel. Turn the exposed pull rod clockwise using the 1mm slot in it’s end until the lever assembly is disconnected from the pull rod lever sub-assembly will then slide out from the retaining flanges. To replace lever sub-assembly reverse the above procedure.

- Important: If any impact is sustained on lever causing a high pressure input to brake system, whole system should be replaced.

Price: £385.11 (Excluding VAT at 20%)

Type

AP CP3756 RACING 14 MM BORE REAR MASTER CYLINDER
This uniquely developed single chamber, pull type rear master cylinder, has been designed for use on all solo motorcycle applications. The pull type configuration allows an exceptionally compact design for ease of installation.

Features:

- Single chamber , Single seal.

- Pull type configuration.

- Aluminium alloy body.

- Manufactured from high quality castings.

Typical Applications:

- All solo machines.

Assembly Part Number:

- CP3756-4

Price: £224.68 (Excluding VAT at 20%)

Online Catalog > Brakes, Upgrades and Accessories > AP Racing Brake Components > AP Master Cylinders