Master Cylinder Cover – Front Brake – Black/Twice-Cut – Softail Models (2018–2025)
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- Questions? Call 715-235-3659 or chat with us on the site.
Description
Thrashin Supply Co. Black/Twice-Cut Front Brake Master Cylinder Cover for Harley-Davidson Softail Models
Upgrade your Harley-Davidson® controls with the Thrashin Supply Co. Black/Twice-Cut Front Brake Master Cylinder Cover, engineered for riders who want performance-level precision with custom style.
Machined from 6061 aircraft-grade aluminum, this high-quality cover delivers the perfect mix of durability and refined design. The Twice-Cut finish features a black anodized surface accented by machined aluminum highlights — giving your controls an aggressive, contrast-cut look that pairs perfectly with modern Softail styling.
Installation is quick and easy, using the factory OEM gasket and the included hardware for a perfect, leak-free fit. Proudly made in the USA, this cover is built to last and look great ride after ride.
Key Features
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CNC-Machined Aluminum: Constructed from premium 6061 aircraft-grade aluminum for superior strength and fit.
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Twice-Cut Design: Striking black anodized finish with precision-machined aluminum accents for a performance-inspired look.
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Simple Installation: Includes mounting hardware and reuses your OEM gasket.
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Custom Fit: Designed for late-model Harley-Davidson Softail front brake master cylinders.
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Made in the USA: Engineered and produced with precision American craftsmanship.
Fitment – Harley-Davidson Models
Fits the following Harley-Davidson® Softail models:
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2025 FXBR Softail Breakout
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2025 FXBB Street Bob 117
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2023–2025 FXBR Breakout 117
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2022–2025 FXLRS Low Rider S 117
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2022–2025 FXLRST Low Rider ST 117
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2022, 2025 FXBB Softail Street Bob
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2021–2024 FXBBS Street Bob 114
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2020–2021 FXLRS Low Rider S 114
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2018–2023 FXFBS Fat Bob 114
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2018–2021 FLSL Softail Slim 107
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2018–2020 FXBB Street Bob 107
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2018–2020 FXBRS Breakout 114
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2018–2020 FXLR Low Rider 107
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2018–2019 FXFB Fat Bob 107
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2018–2019 FXBR Breakout 107
Fitment based on stock configurations. Aftermarket controls or handlebar changes may impact compatibility.
Technical Specifications
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Product Name: Master Cylinder Cover
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Brand: Thrashin Supply Co.
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Type: Front Brake Reservoir Cap
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Material: 6061 Aircraft-Grade Aluminum
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Finish: Black / Twice-Cut (Polished Contrast Cut)
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Mounting Style: Bolt-On (Hardware Included)
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Compatibility: Reuses OEM Gasket
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Units: Kit
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Riding Style: Street / Cruiser / Softail
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Made in: USA
Fitment
Fits Harley-Davidson Softail Models - 2018 to 2025
Not sure it fits your bike? Call 715-235-3659 or chat with us on the site and a tech can confirm it with you.
Specifications & Installation
| Brand | Thrashin Supply Co. |
|---|---|
| Part number | 107180 |
| Product type | Master Cylinders |
| CNC-Machined Aluminum | Constructed from premium 6061 aircraft-grade aluminum for superior strength and fit |
| Twice-Cut Design | Striking black anodized finish with precision-machined aluminum accents for a performance-inspired look |
| Simple Installation | Includes mounting hardware and reuses your OEM gasket |
| Custom Fit | Designed for late-model Harley-Davidson Softail front brake master cylinders |
| Made in the USA | Engineered and produced with precision American craftsmanship |
| Product Name | Master Cylinder Cover |
| Type | Front Brake Reservoir Cap |
| Material | 6061 Aircraft-Grade Aluminum |
| Finish | Black / Twice-Cut (Polished Contrast Cut) |
| Mounting Style | Bolt-On (Hardware Included) |
| Units | Kit |
Videos
Want it installed right? Book the Nowaskey Speed Shop or call 715-235-3659.
Questions Riders Ask
Will this fit my bike?
Fits Harley-Davidson Softail Models - 2018 to 2025.
Save your bike with Shop by Bike and we check it for you. Not sure? Call or chat with us on the site and a tech can confirm it with you.
What's the part number?
Manufacturer part number 0610-2385 (Thrashin Supply Co.). Our item number is 107180.
What do riders buy with this?
Can I install it myself?
Most riders with basic tools and a service manual can. The Specifications & Installation tab lists difficulty, time and guides where we have them. Prefer a pro install? Book a Speed Shop slot and call to check current availability.
Who do I talk to after I buy?
Our techs. Call 715-235-3659 or chat with us on the site and you will reach the people who know these parts.
Still have a question? Call 715-235-3659 or chat with us on the site.
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Premium Performance Parts
Race-proven suspension, front ends and brakes we stand behind
Track-proven Performance
Nowaskey Extreme Performance is a Harley-Davidson suspension and performance shop in Menomonie, Wisconsin. We design our own shocks, fork cartridges and front-end packages, test them in King of the Baggers racing, and back Nowaskey-brand products with a lifetime warranty.
Every setup is matched to your bike, your weight and the way you ride.