QUADRUPLE gold medallist Chris Hoy today urged aspiring cyclists to believe they can "do it clean".

The 32-year-old track hero became the first Briton to win three golds at a single Olympics in 100 years with victory over team-mate Jason Kenny in the sprint final, adding to the gold he won in Athens.

It was Britain's eighth cycling success of these Games and prompted an American journalist to question the authenticity of the results, given cycling's past troubles with doping.

Hoy, a vociferous anti-drugs campaigner who signed the athletes' petition against Dwain Chambers' attempt to overturn his lifetime Olympics ban, cited the example of Jason Queally, who sparked Britain's cycling renaissance when he won gold in the kilometre time-trial at the 2000 Games.

Hoy said: "All I can say is that when I was a young rider coming through the ranks, I remember seeing Jason Queally, who I'd trained with, win gold in Sydney.

"I saw him standing on the podium and I knew then that he was clean. I knew he'd won an Olympic gold medal clean and that was the day I thought, Wow, if he can do it, I can do it'.

"Sadly, there are always going to be suspicions that this hasn't come out of the blue, but it's been 12 years in the making."

The British team completed the five days of velodrome competition with two of the three golds on offer - Victoria Pendleton won the other in the women's sprint.

There was a brief downbeat interlude when Bradley Wiggins failed to match Hoy's achievements after missing out on gold in the Madison.

But the final numbers are impressive - British cyclists won seven of the 10 events on offer and also picked up three silvers and two bronze medals.

Hoy admitted he was surprised there had been no response from their rivals to March's track World Championships when British cyclists won half of the 18 golds on offer.

Australia were the dominant force in Athens when they won four track golds could only pick up a solitary silver medal here.

Hoy sounded almost disappointed as he said: "What was surprising to me was not that we stepped up a whole new level.

"It seems surprising that other nations have underperformed." Lloyds TSB, proud first partner of the London 2012 Olympic and Paralympic Games and supporter of Team GB on their journey to 2012. Visit www.LloydsTSB.com/London2012