Dame Sarah Storey has no intention of a repeat of the most painful hour of her life.
The 37-year-old 11-time Paralympic champion fell short in her attempt at the Hour record - riding the furthest distance in 60 minutes - at the Lee Valley VeloPark last Saturday.
Storey, who won five Paralympic swimming titles before switching to the bike in 2005, completed 45.502-kilometres as Dutchwoman Leontien Zijlaard-van Moorsel's 12-year-old mark of 46.065 kilometres proved too far.
Lapping a 250-metre track for 60 minutes is not everyone's idea of fun - her 20-month-old daughter Louisa slept through most of the attempt - and Storey has no plans to have another go.
"No. It's a once in a lifetime," she told Press Association Sport.
"I won't be considering doing it any time soon. If I ever did it again it would be well after Rio.
"I have absolutely no idea how Graeme Obree did it again the following day, when he was unsuccessful in his attempt and then successful the day after.
"It's an incredibly drawn out, painful process. I hoped I had enough in me to go over 46km, but whatever I was going to do was going to be the absolute best I had.
"I feel I couldn't have given any more and so I can't be too hard on myself. I was hard enough on myself just to finish on Saturday."
The crowd at the 6,000-capacity arena - formerly known as the Olympic Velodrome - reminded Storey of the heady summer of 2012, when she won four Paralympic gold medals.
She said: "It was like extra energy pushing me. The crowd in that place really makes the venue.
"I was fortunate to have the experience I had at London 2012 again on Saturday."
Storey has plenty of stamina, but now must find some speed ahead of the Para-cycling Track World Championships in Apeldoorn, Holland at the end of this month.
Storey will defend her 3km individual pursuit and scratch race titles and also compete in the 500 metres time-trial.
Britain returned from the Track World Championships in Paris last month without a gold medal for the first time in 14 years.
The para-cycling world has already caught up with Britain, but Storey says the team will continue to strive to be at the top.
She added: "The para-cycling team hasn't been top of the world for a long time. We did reasonably well in London, but it was a disappointing performance compared to Beijing.
"From my perspective, I held up my side of the bargain, we just have to make sure everyone is firing on all-cylinders.
"The rest of the world does move on, but we haven't moved on as quickly as everybody else.
"We can't consider ourselves dominating any more but we're definitely fighters and the riders want to do their absolute best all the time."