OneUp Components

V3 Dropper Cartridge Kit, 210mm

OneUp Components V3 Dropper Cartridge Kit is a direct-replacement internal cartridge designed to restore like-new performance to compatible OneUp Components V3 dropper posts in the 210mm travel configuration.

Ideal for service after high mileage or contamination, this cartridge kit brings back consistent return speed, smooth actuation, and reliable saddle height changes—so the dropper works predictably every time the trail demands it.

• Direct V3 Replacement Cartridge - Replaces a worn or failing internal unit to recover dependable dropper function without replacing the full post
• 210mm Travel Compatibility - Correct fit for OneUp Components V3 droppers in the 210mm configuration for proper operation and travel
• Consistent Actuation - Helps eliminate common cartridge-related issues like slow return, inconsistent feel, or incomplete extension
• Service-Focused Kit - Streamlines maintenance with the right core part for a clean, targeted repair