Four motorcyclists were caught speeding along Yarra Glen within a 40-minute period on Saturday morning.
ACT Police were doing routine speed enforcement work between 7.50 and 8.30am on January 21 in the 80km/h zone.
A 44-year-old man was caught speeding at 121km/h and issued a fine for $700 and recieved four demerit points.
A 22-year-old woman was caught driving at 108km/h and was fined $484 and three demerit points.
Two men, aged 39 and 24 were clocked at 107km/h and 105km/h respectively. Both were also fined $484 and got three demerit points each.
An ACT Policing spokesperson said speeding was a major contributor to injury and death on ACT roads.
"It reduces reaction times, as well as increasing stopping distances and the impact of a collision, especially for vulnerable road users including motorcyclists," the spokesperson said in a statement.
"ACT Policing will continue to enforce the speed limit on Canberra roads and reminds the community to always stick to the speed limit and get to their destination safely."
The ACT recorded 18 road fatalities in 2022, the highest road toll in 12 years. There has been one fatal crash in Canberra so far in 2023.