Thrashin Supply Co. Chrome Front Brake Master Cylinder Cover for Harley-Davidson Softail Models

Bring classic shine and precision performance to your Harley-Davidson® with the Thrashin Supply Co. Chrome Front Brake Master Cylinder Cover. Crafted from 6061 aircraft-grade aluminum, this cover offers a perfect balance of strength, lightweight durability, and timeless chrome styling.

Designed to reuse the factory OEM gasket, the cover ensures a leak-free fit while delivering a high-end finish that instantly upgrades your controls. Installation is simple with the included hardware, and its precision-machined design guarantees seamless alignment with your stock master cylinder.

Proudly made in the USA, this chrome master cylinder cover embodies the quality, fit, and attention to detail Harley riders expect from Thrashin Supply Co.

Key Features

• Premium Construction: CNC-machined from 6061 aircraft-grade aluminum for unmatched strength and precision.

• High-Polish Chrome Finish: Adds classic Harley-Davidson shine and custom flair.

• Easy Installation: Includes all mounting hardware and reuses factory OEM gasket.

• Engineered Fit: Designed specifically for Harley-Davidson Softail master cylinders.

• Made in the USA: Built with American craftsmanship and performance in mind.

Fitment – Harley-Davidson Models

Fits the following Harley-Davidson® Softail models:

• 2025 FXBR Softail Breakout

• 2025 FXBB Street Bob 117

• 2023–2025 FXBR Breakout 117

• 2022–2025 FXLRS Low Rider S 117

• 2022–2025 FXLRST Low Rider ST 117

• 2022, 2025 FXBB Softail Street Bob

• 2021–2024 FXBBS Street Bob 114

• 2020–2021 FXLRS Low Rider S 114

• 2018–2023 FXFBS Fat Bob 114

• 2018–2021 FLSL Softail Slim 107

• 2018–2020 FXBB Street Bob 107

• 2018–2020 FXBRS Breakout 114

• 2018–2020 FXLR Low Rider 107

• 2018–2019 FXFB Fat Bob 107

• 2018–2019 FXBR Breakout 107

Fitment is based on stock configurations. Aftermarket handlebar or control modifications may affect compatibility.

Technical Specifications

• Product Name: Master Cylinder Cover

• Brand: Thrashin Supply Co.

• Type: Front Brake Reservoir Cap

• Material: 6061 Aircraft-Grade Aluminum

• Finish: Chrome (Polished)

• Mounting Style: Bolt-On (Hardware Included)

• Compatibility: Reuses OEM Gasket

• Units: Kit

• Riding Style: Street / Cruiser / Softail

• Made in: USA