AP Racing Catalogue Issue 4

visit www.apracing.com for installation drawings & up to date product range details 70 MASTER CYLINDERS - Motorcycle - CP3215, CP3756, CP2215 & CP2232 Types GUIDE TO ADJUSTMENT Screw Adjuster Braking Lever Travel Lever Feel In - Clockwise Decreased Decreased Harder Out - Anti-Clockwise Increased Increased Softer CP3756-4 Pull Type Rear Master Cylinder TECHNICAL DETAILS Weight 100g Effective Bore Size 14.0mm Actual Bore Size 15.87mm (0.625”) Stroke 16.2mm (0.638”) - Outlet M10 x 1.0 Hydraulic Connections Push-on inlet 7.9mm (5/16”) inside hose Ø Outlet thread M10x1.0 RECONDITIONING / SERVICING CP3756 has to be returned to AP Racing for this service. No repair kit available. TYPICAL APPLICATIONS ◘ Classic racing and road motorcycle FEATURES ◘ The original “Classic” rear master cylinder. ◘ Aluminium alloy body. ◘ Manufactured from high quality castings. ◘ Integral fluid reservoir. ◘ Replaces CP2232-12. TECHNICAL DETAILS Weight 300g Actual Bore Size 15.87mm (0.625”) Stroke 11.8mm (0.46”) Hydraulic Connections Outlet Thread 3/8”x24UNF Reservoir Capacity 35cc Spare part kit for CP2232-90 only Repair kit - CP5678-1RK Seal kit for original CP2232 CP2232-12RK TECHNICAL DETAILS Weight 520g Actual Bore Size 15.87mm (0.625”) Stroke 16.0mm (0.638”) Hydraulic Connections Outlet Thread 3/8”x24UNF Reservoir Capacity = 50cc. Note: When filling reservoir, reform internal bellows as flat as possible, prior to re-fitting. SPARE PARTS Repair kit CP5678-1RK Lever Part No. CP2233-18 TYPICAL APPLICATIONS. ◘ Classic racing and road motorcycle FEATURES. ◘ The original “Classic” master cylinder. ◘ Aluminium alloy body and cap. ◘ Suitable for single and twin disc applications. ◘ Integral fluid reservoir. ◘ Manufactured from high quality castings. ◘ Replaces CP2215-20 . CP3125-2 Original Adjustable Ratio Master Cylinder FEATURES The original adjustable ratio brake master cylinder can be used to upgrade any brake system. - Supplied with integral fluid reservoir. - Incremental ratio adjustments - 6.4 / 9.34:1 TYPICAL APPLICATIONS - Historic Grand Prix & Superbike machines and Road. ASSEMBLY PART NUMBER - CP3125-2 R/H (16mm to 19mm effective bore) TECHNICAL SPECIFICATIONS - Weight - 475g - Effective bore size - 16mm -19mm. - Actual bore size - 19.0mm (0.74”) - Hydraulic Connections - Outlet thread - M10 x 1.0 - Bleed Screw Tightening Torque - 5.5Nm (4lbsft) - Repair Kits: - CP3125-2 = CP3125-2RK / CP3125-4 & -5 = CP3125-4RK ◘ Download latest issue installation drawing from : www.apracing.com RATIO ADJUSTMENT GUIDE This variable ratio master cylinders has a screw to adjust the ratio. This adjuster is moved to and away from the handlebar with the effects detailed in the table below. TECHNICAL SPECIFICATIONS & NOTES ◘ Master cylinder will be supplied with the screw adjuster set at position 0 (i.e. with the adjuster flush with locknut 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 (see table above) only working stroke should be set to the rider’s preference. After initial setting only small adjustments, typically ±½ turn, should be necessary to suit differing conditions. ◘ Lever travel will usually increase slightly in dynamic applications, over static set- tings, due to disc runout etc. It is therefore advisable to set lever feel on the hard side for initial test. ◘ Important: If any impact is sustained on lever causing a high pressure input to brake system, the whole system should be either replaced or sent back to AP Racing for examination. TYPICAL APPLICATIONS ◘ All Solo Machines. FEATURES ◘ Pull type configuration, allowing for a compact installation. ◘ Single chamber, single seal. ◘ Aluminium alloy body. ◘ Manufactured from high quality castings. ◘ Download latest issue installation drawing from : www.apracing.com CP2215-90 “Classic” Master Cylinder CP2232-90 “Classic” Rear Master Cylinder