Great Britain's cyclists were seeking to build on Sarah Storey's golden start to the Paralympic Games on the second day of competition at the London 2012 velodrome.
Storey won her eighth Paralympic gold and Great Britain's first title of the XIV Paralympics with a supreme victory in the women's C5 three-kilometres individual pursuit.
The triumph came after Mark Colbourne won silver in the men's C1-2-3 one-kilometre time-trial, and he was set to return to the track on day two in the C1 3km individual pursuit.
"I prepared very well for that and hopefully I'll be able to put my money where my mouth is," said the 42-year-old Welshman.
Lora Turnham and pilot Fiona Duncan and Aileen McGlynn and pilot Helen Scott were going for gold in the day's first event, the women's blind and visually impaired tandem one-kilometre time-trial.
Shawn McKeown and Darren Kenny were scheduled to ride in the men's C3 3km individual pursuit.
Another British showdown was anticipated in the men's C4-5 one-kilometre time-trial, with C4 world champion Jody Cundy set to meet C5 world champion Jon-Allan Butterworth.
Storey is a quarter of the way through her Paralympic schedule, which includes the road race and time-trial at Brands Hatch next week. A clean sweep would see her equal wheelchair racer Baroness Tanni Grey-Thompson's British female record of 11 Paralympic gold medals.
The 34-year-old from Manchester qualified fastest before catching final opponent Anna Harkowska of Poland after six and a half of the 12 laps.
It was a third cycling gold for Storey, whose Paralympic career began as a 14-year-old swimmer in Barcelona in 1992 and has now featured 19 medals across six Games.