Description
A derby cover serves as both protection and visual statement on your Big Twin engine. Pro-One’s billet aluminum construction resists impact and corrosion while the ball-milled finish delivers a refined aesthetic that complements serious builds. This is bolt-on protection that doesn’t compromise on durability or appearance.
- Billet aluminum construction
- Ball-milled finish
- Big Twin fitment
- Bolt-on installation
- MPN: 203860
- Corrosion resistant
- OEM-quality machining






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