
Triumph Trident Daytona 660 Quick Shift Assist Kit - A9770389
The Triumph Trident Daytona 660 Quick Shift Assist Kit MPN A9770389 allows for up and down gear shifts without the use of the clutch. Featuring adaptive interrupt duration based on RPM and an easy plug and play fitment. This performance accessory is perfect for the track or every day rider and offers a smooth quick shifting experience.
Will it fit my Triumph? Fitment is identified by the last six characters of your VIN. Letters rank above numbers.
Fitment is from Triumph's parts catalogue. Confirm against your VIN before ordering. Request fitment verification.
Triumph fitting instructions for A9770389 (PDF), updated April 2026.
Bought it online? Our service team will fit it for you. Request a service appointment.
Installation for Daytona 660 requires fitting kit



