"I really do think the best thing to do with the whole doping culture of the sport, to move past that image that we've had in the past, is to talk about it," said Froome.
"Be completely open and say: 'Listen, this was is what happened in the sport back then but it's definitely not happening any more, and these are the reasons.'
"It needs to be talked about and we need to move on from that.
"But there is going to be a point when enough is enough, and we need to get on and start talking about the good things in the sport and the great racing that's getting missed now because we're harping on about what happened 10 years ago."
Tiernan-Locke has endured a terrible first season in cycling's top tier, with a best result of 47th in the third stage of the Volta ao Algarve.
Endura team manager Brian Smith backed Tiernan-Locke, telling BBC Radio 5 live: "I'm 100% behind him. He's not a doper. Endura racing had a no-doping stance and as far as I'm concerned he was true to his word.
"Throughout the Tour of Britain he was urine-tested every day and a blood booster would have shown up, so it doesn't make sense."
Tiernan-Locke's agent, Andrew McQuaid, son of the former UCI president Pat McQuaid, did not want to comment, saying only that he was focusing on Tiernan-Locke's defence.
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