The driver is believed to have crashed into a barrier on the Farrenkelly Road in Greystones, Co Wicklow at around 6.25pm.
He came off his motorbike and was pronounced dead at the scene a short time later.
Nobody else was involved in the crash.
Gardai, the fire brigade and an ambulance attended the scene.
If you have a story or want to send a photo or video to us please contact the Kildare Now editorial team. Between 9am and 5pm Monday to Sunday please call 045 409350. Between 5pm and midnight please call or text 086 729 0010. Or you can email content@kildarenow.com at any time.