Great Britain's Mark Colbourne and Hannah Cockroft were the toast of the Paralympic Games as they each claimed gold on day two of the London 2012 Games.

Colbourne, who won silver in the 1km time trial on day one, went one better in the C1 pursuit, breaking the world record in qualifying before snatching gold in stunning style beating Yu Li Zhang in the gold medal final.

And on the track, Hannah Cockroft completed the first half of an expected double sprint gold, winning the women's T34 100m in style.

Mark Colbourne
Colbourne sped to gold in the men's pursuit.

The gold rush was started by Colbourne in the veldrome, who after breaking the world record in reaching the final, cruised to victory.

"The way my body works, if I go flat out for five laps I struggle, so I work to make sure I can sustain this Bradley Wiggins-type pace," Colbourne said. "Our plan worked. For me, I had this dream two years ago.

"I keep pinching myself. I'd like to dedicate this to my late father and my mother in the crowd here - and my daughter, who has been through a lot with my accident and stuff. Thanks for the support."

But it was disappointing news for Jody Cundy in the men's C4-5 time trial. The Brit's back wheel failed to release from the gate at the start of his lap but when he stopped he wasn't allowed to re-start and was subsequently disqualified by the officials.

Video replays, that weren't consulted by the officials, cleared showed Cundy's back wheel being spinning in the gate, but no appeal was granted, leaving the six-time Paralympic champions furious.

Cundy had to be escorted away from the arena, shouting expletives, prior to returning to the velodrome to apologise for his actions

"I would like to apologise for my language, I think that even after all that noise you might have been able to hear my language," he said. "Congratulations to all my fellow competitors.

Jody Cundy
Cundy was left furious by the decision to disqualify him.

"I lost it," he told reporters. "I'm not proud of it but the amount of hard work and effort that goes into it, I was pretty angry. I said a few choice words over and over again pretty much at the top of my voice. I didn't know what to do. It was pure anger.

"It feels like somebody died. They haven't, I've just missed a bike race. I wanted to experience that roar that I still haven't had the chance to experience, and when you've got that red mist it's very hard to stop."

Jon-Allan Butterworth was able to win silver in the C4-5 event, behind eventual winner Alfonso Cabello from Spain.

In the C3 individual pursuit, GB picked up two more medals with Darren Kenny, who missed out on a medal on day one, winning bronze with a world record while Shaun McKeown was overwhelmed by American Joseph Berenyi.

Aileen McGlynee began the medal rush on day two in the velodrome, claiming silver in the women's individual time trial behind Australian Felicity Johnson and ahead of New Zealander Phillipa Gray.

In the first day of the athletics competition, the evening belonged to world record holder Cockroft, who produced a sterling showing to win gold in the women's T34 100m.

Hannah Cockroft
Cockroft strolled to gold.

Cockroft, who beat Netherlands' Amy Siemonds and Rosemary Little from Australia, said: "It sounds pretty good I've been waiting for five years for that.

"I was deciding whether to cry or laugh {when crossing the line] it's unreal when you've been riding for so long it's brilliant. It's amazing.

"I knew I'd beaten all these girls before, I knew I could do it but it is all about what happens on the day as soon as the gun went off it was amazing."

In the men's shot put Aaron Davies held off competition from Guofeng Kang to win bronze, behind Jackie Christiansen who recorded a Paralympic record in winning gold with a throw of 18.16m, to beat Darko Kralj into second.

If Great Britain's medal haul was further boosted in the aquatics centre; Oliver and Sam Hyde won silver and bronze in the men's S8 400m freestyle, while Heather Frederiksen claimed silver in the women's event.

In the men's and women's S9 100m backstroke Britain claimed silver in both events with James Crisp and Stephanie Millward played second fiddle to their Australian counterparts Matthew Cowdry and Ellie Cole.

Aaron Moores won silver in the men's 100m backstroke to take ParalympicGB swimming tally to five on day two.