A man has allegedly been caught riding a modified e-scooter at 100 kilometres per hour on a Canberra road.

ACT police say officers spotted the e-scooter travelling along the Majura Parkway's on-road bike lane at an "excessive speed" about 8:40am today.

The officers directed the 38-year-old rider from Phillip to leave the road, and he entered a nearby bike path.

Shortly afterwards, they said he lost control of the scooter and fell off, before allegedly attempting to flee on foot.

He was stopped a short time later, police said, and then tested positive for methamphetamine during a road-side breath test.

The officers seized the scooter.

ACT police issued a statement reminding Canberrans to take care on e-scooters and avoid high speeds, with double demerit points in place until January 2.

"It is illegal to ride a personal mobility device, including an e-scooter, at a speed in excess of 25km/h," the statement said.

"Due to the speed recorded by the rider, he will be charged with vehicular offences including disqualified driving, using an unregistered and uninsured vehicle, and failing to stop for police."

They said he would like face additional charges.

He will face court in January.