PSR Brake Master Cylinder Reservoir
PSR Brake Master Cylinder Reservoirs: Racing-Inspired Precision for Your Motorcycle
When it comes to upgrading the braking system on a sport bike, cruiser, or V-twin, few components make as immediate a visual and functional impact as the brake master cylinder reservoir. PSR (Powerstands Racing) has been at the forefront of this niche since 2001, bringing the same race-derived engineering philosophy that defines their entire product lineup to their line of brake master cylinder reservoirs.
PSR, also known as Powerstands Racing, is a southern California company with deep roots in motorsport. Since 2001, PSR has been producing performance motorcycle parts engineered to the highest standards for quality, style, and reliability — and their brake reservoirs are a prime example of that commitment.
What Sets PSR Brake Master Cylinder Reservoirs Apart
The stock plastic reservoir that comes on most motorcycles is functional, but it's far from inspiring. PSR's brake master cylinder reservoirs are CNC machined for a precise fit and quality finish, replacing the OEM plastic unit with a compact, billet aluminum alternative that dramatically cleans up the appearance of the master cylinder area. The result is a tidier, more purposeful look that signals a performance-oriented build without sacrificing reliability.
- CNC-machined billet aluminum construction for durability and tight tolerances
- Replaces OEM plastic reservoirs — a direct upgrade in both form and function
- Reversible mounting bracket included for flexible installation options
- Available in multiple anodized finishes including silver, gray, red, blue, gold, and gunmetal, in single and contrast color options
- Universal design suitable for use as a front brake, rear brake, or clutch reservoir on a wide range of sport bikes and cruisers
Built for Sport Bikes, Cruisers, and Custom Builds Alike
PSR's brake master cylinder reservoirs are popular with riders building custom café racers, bobbers, and street trackers, as well as those upgrading to aftermarket master cylinders from brands like Brembo. Their compact, hard-mount design allows the reservoir to integrate directly with the master cylinder, eliminating the overflow hose and remote reservoir setup found on many stock configurations. This is particularly appealing to riders who want a clean, minimalist aesthetic at the rear brake — or who are pairing the reservoir with a high-performance master cylinder and lever upgrade at the front.
Enthusiasts who have run PSR reservoirs on platforms ranging from Honda CBR sportbikes to Yamaha R-series machines frequently cite the quality of machining and the range of color options as key reasons to choose PSR over less refined alternatives. The anodized finish is not just cosmetic — it adds a layer of corrosion resistance that stands up to the heat and fluid exposure inherent to brake system components.
The PSR Difference
PSR's product philosophy — racing inspired, built for performance — runs through every reservoir they produce. As part of a broader catalog that spans adjustable levers, footpegs, frame sliders, and engine components, PSR's brake reservoirs benefit from the same machining standards and design attention the brand applies across all of its parts. Whether you're building a track-day weapon or simply want a more refined look on your daily rider, PSR's brake master cylinder reservoirs deliver a meaningful upgrade over the factory plastic unit. Explore the full PSR brand catalog or browse all brake master cylinder reservoirs to find the right fit for your build.