Andrew Atkinson, 58, was pronounced dead at the scene after his BMW R1250 GS motorbike collided with a stationery Vauxhall Meriva on the A708, between Yarrow Valley and Moffat.
It happened at about 4 pm on Sunday and the road was closed for seven hours while crash investigations took place.
The car driver was not injured in the incident.
A 34-year-old man was arrested in connection with road traffic offences but has been released pending further enquiries.
Road policing officers in the Scottish Borders are appealing for witnesses and Sergeant Barry Sommerville said: “My thoughts go out to Andrew’s wife, daughters, grandsons and friends at this very difficult time.
“We are working to piece together exactly what happened in the lead up to this crash and I would urge anyone with information or dash-cam footage to contact police.
“Andrew was travelling with two other bikers at the time, maybe you remember seeing the group in the area around 4 pm? If so, please get in touch.”
Anyone with information is urged to contact Police Scotland on 101 quoting reference 2416 of 10 July, 2022.
