Sir Bradley Wiggins says he will “shock a few people” when he has his say on an investigation into a “mystery package” delivered for him in 2011.
Wiggins, 36, said controversy over the package delivered while he was riding for Team Sky had been “horrible”.
UK Anti-Doping is investigating doping claims but there is no suggestion either Wiggins or Team Sky broke rules.
“It’s the worst thing to be accused of when you’re a man of my integrity,” Wiggins told Sky Sports’ Soccer AM.
“It’s been horrible. But fortunately there’s an investigation and I obviously can’t say too much because that investigation will run its course and then I’ll have my say.
“There’s a lot to say, and it’s going to shock a few people.”
Team Sky have admitted “mistakes were made” over the delivery of the package at the Criterium du Dauphine but deny breaking anti-doping rules.
However they have been unable to provide records to back up the claim by team boss Sir Dave Brailsford that Wiggins was given a legal decongestant.
The original allegation made to Ukad was that the package delivered by then-British Cycling coach Simon Cope to ex-Team Sky medic Dr Richard Freeman in 2011 contained anti-inflammatory drug triamcinolone.
Britain’s most decorated Olympian, an asthma sufferer, was granted a TUE to take triamcinolone before the 2011 Tour de France, his 2012 Tour win and the 2013 Giro d’Italia.
The Department for Culture, Media and Sport Committee (DCMS) has sought answers relating to the package and also Wiggins’ use of therapeutic use exemptions (TUEs). MPs have also criticised the team’s record-keeping.
Team Sky have said they are “confident” no wrongdoing will be found when the inquiry is concluded.