This article originally appeared on BikeRadar
Since the Hour Record bike regulations were simplified by the UCI in May 2014, there has been a rash of attempts on the title – and among those leg-burning, all-out efforts, we've had some gorgeous bikes to drool over.
So far we've covered the machines of Jens Voigt, Matthias Brändle, Jack Bobridge, Rohan Dennis, Dame Sarah Storey and current record holder Alex Dowsett.
This year, we're looking forward to seeing Sir Bradley Wiggins take on the Hour on 7 June, while Tony Martin has also expressed interest. There's always the hope that we'll finally see Fabian Cancellara have a go too.
Hour Record Bikes
Jens Voigt's Trek Speed Concept
Voigt rode a modified Trek Speed Concept 9-series for the attempt, adapting the swift TT / tri bike for the track, as well as adding an apposite clock-inspired paintjob.
Matthias Brändle's Scott Plasma 5
Matthias Brändle cited Voigt's influence on him as a big factor in his choice to take on the Hour Record, which was hopefully some comfort to the German veteran when the youngster beat the record by 757m.
Scott modified its newest triathlon super bike, the Plasma 5, for Brändle's attempt. The brand removed all the tri-specific additions and smoothed out the front end to make the bike as slick as possible. It certainly seemed to work for Brändle.
Jack Bobridge's Cervelo T4
The Aussie used a Cervelo T4 for the attempt, complete with the Cervelo P5 Aduro aerobar made by 3T and a pair of Lightweight Runkurs disc wheels. Perhaps the mismatched ugliness of the front end was a deciding factor here.
Rohan Dennis's BMC TrackMachine TR01
Dennis's BMC TrackMachine TR01 looks stock, but it's been souped up by the brand's Impec Advanced R&D Lab in order to increased stiffness.
Thomas Dekker's Koga TeeTeeTrack
The most recent athlete to attempt the Hour Record after Dennis was Thomas Dekker, with the Dutchman having a crack at the BMC rider's record on 25 February in Mexico. Dekker was unable to bottle the same magic as Eddy Merckx's hour-beating success in Mexico and failed match the Australian's record, setting a distance of 52.221km, just 270m short.
Dekker used a Koga TeeTeeTrack for the attempt, complete with Mavic Comete Track disc wheels and a 3T aerobar set-up. The spider-web paintjob was also mirrored on Dekker's helmet.
Alex Dowsett's Canyon Speedmax WRH
Dowset’s Canyon Speedmax TT bike was adapted for the narrower rear track hub while any cable entry points were filled in for the best possible aerodynamic profile. Campagnolo provided Dowsett with the company's newly developed Pista double disc wheelset, crankset and chainring.
Bradley Wiggins' Pinarello
Bradley Wiggins has already committed to put the World Hour Record 'out of reach' when he makes his attempt in London on 7 June. "I've got 55km in my head and I believe that's realistic," he told The Times. "And I think if I do that it will stand for 20 years."
The Team WIGGINS founder will be using a bike from sponsor Pinarello, but the actual model and any track-specific alterations are yet to be revealed.
Dame Sarah Storey's Ridley Arena Carbon
Paralympic hero Dame Sarah Storey took on the women's Hour Record in front of a packed crowd at the London Olympic Velodrome, but fell short of the 46.065km set by Leontien Zijlaard-van Moorsel in 2003. The Brit did set a new national record of 45.502km in the process, which was also enough to set C5 and Masters records.
Dame Sarah used a Ridley Arena Carbon for her attempt. Unlike the majority of the men's bikes, the Ridley was a stock frame, built up with Shimano kit, an Infocrank power meter and a carbon Peekrings chainring.