Vented Silver Viper 2-Disc Aluminum Clutch Drum for Heat Management World Formula supporting 68mm standard bores up

supporting 68mm standard bores up to +

you may need to perform slight grinding to ensure perfect compatibility

Orange top for high-visibility and brand flair

where races can stretch hours

Vented Silver Viper 2-Disc Aluminum Clutch Drum for Heat Management World Formula supporting 68mm standard bores upHeat is the enemy of speed in kartingthis Viper vented drum fights back with targeted airflow channels in its silver aluminum body. The two disc setup, combined with ventilation, keeps temperatures low, preventing slip and ensuring crisp engagement even after multiple hot laps. Vents promote cooling without compromising structural integrity. Standard small pattern fits Bully sprockets and similar for broad versatility. Silver anodized surface resists