Granges - Australian cyclist Rohan Dennis will make an assault on the world one hour record at the Granges velodrome on Sunday.
Dennis, 24 and winner of the recent Tour Down Under, will be aiming
to overhaul the 51.852km covered in 60 minutes last October by
Matthias Brändle of Austria, also in Switzerland, at Aigle.
Brändle beat the previous best of 51.115km set the previous month in Granges, by Jens Voigt of Germany.
Dennis, world pursuit champion in 2011 and Olympic silver medallist
in London with the Australian pursuit team, is the first man this year
to attack the record.
Britain's Olympic time trial champion and former Tour de France
winner Bradley Wiggins has already announced he plans a record attempt
later in the year.