Master Cylinder, Brake, PS 10x19, w/ Integrated Reservoir, MX, Off-Road, Cast, Axial, Front, Black - XA2B3A0

Item Summary Replaces XA2B380 Techincal Information: PS10 refers to 10mm piston bore size About the Product Brembo Racing PS10x19 Axial Front Brake Master Cylinder with Integrated Reservoir Black XA2B3A0 Brand: Brembo Racing Manufacturer Part Number: XA2B3A0 OPP Racing Item Number: 31110 Application: Motocross / Off-Road Front Brake Product Description Upgrade your off-road brake controls with the Brembo Racing PS10x19 Front Brake Master Cylinder. Designed for compatible single-disc front braking systems, the XA2B3A0 combines a 10mm piston with a 19mm lever pivot distance in a compact axial configuration. The integrated fluid reservoir eliminates the need for a separate reservoir and feed hose. Its cast aluminum body features a black-anodized finish, while the adjustable lever allows riders to tailor the control position. Developed for motocross and off-road applications, the XA2B3A0 replaces the earlier XA2B380 master cylinder. OPP Racing product details. Key Features 10mm piston with 19mm lever pivot distance. Integrated brake-fluid reservoir. Axial front-brake configuration. Cast aluminum body with CNC machining. Black-anodized finish. Adjustable lever for a personalized control position. Designed for compatible single-disc MX and off-road braking systems. Technical Specifications Specification Details Model PS10x19 Application Front brake, MX / off-road Master cylinder type Axial Piston diameter 10mm Lever pivot distance 19mm Body construction Cast aluminum with CNC machining Finish Black anodized Lever Standard, adjustable Reservoir Integrated Brake configuration Single disc Microswitch Not included Brake fluid DOT 4 Catalogue weight 275g Bore, lever geometry, construction, finish, weight and fluid specification are confirmed in Brembo's Racing catalogue, page 76. Fitment and Installation Confirm hydraulic compatibility with your front caliper, along with handlebar mounting, lever clearance and brake-line connection requirements. Installation may require a suitable banjo bolt, new sealing washers and fresh DOT 4 brake fluid. Applications requiring brake-light operation need a compatible switching arrangement. The reservoir is incorporated into this master cylinder. Replacement Parts Brembo's catalogue explicitly identifies the following service parts for XA2B3A0: Replacement Part Brembo Catalogue Reference Function Lever spindle / pivot pin 10279812 Lever mounting pivot Replacement lever 10459478 Complete lever Handlebar clamp 10281594 Master-cylinder mounting clamp Dust cover 10353051 Protective boot Reservoir diaphragm 110477110 Anti-bubble reservoir membrane Lever adjuster 10571730 Lever adjustment component These references appear under the model-specific "Code XA2B3A0 Spare Parts" table in Brembo's official catalogue. Lever ordering reference: A later Brembo catalogue lists 110459478 for the complete lever, compared with 10459478 in the older catalogue. Confirm the current ordering reference with OPP. Later Brembo spare-parts catalogue. Service note: No exact replacement reference was verified for a reservoir cap or complete internal piston-and-seal rebuild kit. Click here to view the complete 2012 Brembo Motorcycle Brakes catalog. Reservoir Required: When upgrading your master cylinder, you will need an external reservoir to house the excess brake / clutch fluid. The easiest way is to purchase a brake reservoir mounting kit, which has all hardware, hose, clamps, etc included. You can also purchase the reservoirs or tubing separately if you want to custom fit your own. Banjo Bolts Required: When upgrading your master cylinder, you will need new banjo bolts to connect the master cylinder to your brake lines. Choose a single banjo for OEM brake line configurations (one line to the right caliper with a crossover). Choose a double banjo for dual line configurations (one line to each caliper). For race applications, the banjo bolts do not have pressure switches. For street applications, we recommend banjo bolts with pressure switches that allow you to activate the brake lights. Brake Fluid Required: Don't forget to purchase some Brake Fluid at the same time, since you will need to re-bleed your brakes after installing your new brake master.