A steel exhaust valve for the Ducati DESMO 450 MX engine platform, supplied as ProX 28.8426-1. This component is intended as an exhaust-side replacement and corresponds to OEM reference 21111291A.

Features

• Designed for the Ducati DESMO 450 MX engine platform

• Supplied as ProX part 28.8426-1

Specifications

• Valve position: Exhaust

• Material: Steel

• Model year reference noted in title: 2025

Cross-Reference OEM Part Numbers

• 21111291A

Vehicle Fitments

• Ducati DESMO 450 MX (2026)