He was Alexander Carson, 64, from Carluke.
Mr Carson, who was known as Lex, was fatally injured when his red and black motorcycle was involved in a collision on the A701 Dumfries to Edinburgh road at about 5.50 pm.
Emergency services attended but he was pronounced dead at the scene.
Police are investigating and Sergeant Billy Broatch, of Dumfries and Galloway Road Policing Unit, said: “Our thoughts remain with Mr. Carson’s family at this sad time.
“Our investigation is ongoing to establish the full circumstances of this incident and we would appeal to anyone who witnessed the crash, or have any information that could assist with our enquiries to get in touch.
“Anyone with any information should contact Police Scotland on 101, quoting incident 3023 of 18 September, 2020.”
* Mr Carson is pictured, left, with his son Tom
