Brass/aluminum crankcase covers - Triumph Bobber & Classic

• 🛡️ Protection and style : dresses the engine while protecting the casings

• ⚙️ Plug & play assembly : fixed on the original points, without modification

• 🪙 Premium finishes : polished brass, brushed aluminum, treated black

• 🧲 Wide Compatibility : Bobber, Speedmaster and Classics

• 🔩 Optional titanium screw : lightweight and durable binding

Premium crankcase covers for Triumph Bobber & Classics

Raise the trim level of your engine with tough, stylish, easy-to-install covers

Give character to your twin-cylinder while protecting its components with these crankcase covers designed for Triumph Bobber, Speedmaster and Modern Classics models. Available in brass hand polished for an irresistible vintage look, in aluminum for lightness and sobriety, as well as in finishes treated black (black copper / black silver) for a more discreet and muscular style, they immediately enhance the left and right side of the engine.

Each element fits perfectly into the original mounting points. Choose the configuration that suits you: large left cover, small right cover and oil cap cover matching (called “oil bottle cover” in options). To complete the whole, titanium alloy screw (gold or black) are available, offering a technical touch and an appreciable weight saving.

Whether you are aiming for an aesthetic cafe racer, bobber or classic, these covers provide a high-end finish, durable and consistent with the DNA of your motorcycle. The result: a better protected engine, visually more accomplished and a customization that makes the difference at first glance.

Compatibility:

• Triumph Bonneville Bobber

• Triumph Speedmaster

• Triumph Bonneville T120

• Triumph Bonneville T100

• Triumph Street Twin

• Triumph Street Scrambler 900

• Triumph Thruxton 1200

• Triumph SpeedTwin 1200

Technical specifications:

• 🛠 Type: decorative and protective engine crankcase covers (left, right) + matching oil cap cover

• 💎 Finishes: hand polished brass, brushed aluminum “white”, treated black (black copper / black silver)

• 💪 Material: solid brass or CNC machined aluminum; Titanium alloy screw (golden or black) optional

• 📏 Assembly: direct replacement on the original anchor points, without modification

• 🧽 Maintenance: brass has a natural patina (can be repolished); easy-to-clean aluminum and black finishes

• ⚖️ Weight: light depending on version (around a few hundred grams per piece)

• 🧩 Options available: large left cover, small right cover, oil cap cover, titanium screw kit

Advantages compared to the origin:

✔ Significantly enhanced aesthetics (premium and consistent look)
✔ Noble materials (brass, aluminum) that are more valuable
✔ Durable, micro-scratch resistant finishes
✔ Simple, reversible installation without adaptation
✔ Modular customization (choice of parts and titanium screws)

Why improve the original part?

Original engine casings prioritize functionality and cost rationalization. Result: a finish that is sometimes too basic and a style that lacks depth for personalized preparation.

• Standard visual appearance, not very distinctive

• Finishes that quickly show signs of use

• Few “ready to mount” customization options

These crankcase covers resolve these limitations: premium materials, worked finishes, plug & play assembly and accessories (titanium screws) for complete and lasting customization, in keeping with the spirit of your Triumph.

Ideal use:

• Preparations bobber, classic or cafe racer looking for high-end details

• Bobber/Speedmaster owners wanting to match the left and right side of the engine

• Lovers of noble materials (brass, aluminum) and patinable finishes

• Daily use or Sunday stroll with aesthetic demands and resistance

• Progressive customization thanks to options (oil cover, titanium screw)