A Guernsey postman has failed in his attempt to reclaim the world record for the longest wheelie on a bicycle.
David "Pixie" Robilliard, 45, was making his attempt at the Beau Sejour centre on Saturday, hoping to beat the existing record of 11 hours set by the American Kurt Osburn.
Staff at the centre said he was forced to stop after about five-and-a-half hours after experiencing dizzy spells.
Mr Robilliard made the attempt in a bid to raise money for a skate park.
Fundraisers have been £20-30,000 short of their £250,000 target and were hoping the public would donate the remainder by supporting Mr Robilliard's bid.
He held the record in the past for seven years.
When he previously set the record in 1990, it was for a continuous wheelie of five hours, 12 minutes and 33 seconds.
Before Saturday's attempt, he admitted it would be a challenge.
In December, he broke the world record for the longest distance cycled on one wheel in an hour, which has since been confirmed by Guinness World Records.
In November, he broke the record for the fastest wheelie over 100m but it was an unofficial timing so could not be submitted.
He hopes to secure this record officially with an attempt in July.