Tuesday, April 30, 2013

100 MPH Fixie





   
He already hit 60 MPH on this bike in test runs. Brit framebuilder Tom Dohou plans on taking this fixie to 100 MPH this year. It features a Columbus Max steel frame with a 104 tooth chainring, 17 inches across. The handlebars are slammed down on the crown of the headtube, with drops so deep that the rider's hands are at the same level as the front tire. Note the disk brake up front. No skids on this whip.

So will this be the fastest speed on a bike? Not even close. You might be surprised at how
fast bicycles have gone in the past. And not talking about HPV recumbents - the ones that seem to require a beard and a rear view mirror to ride.

John Howard's Special Derny


Using motor pacing  like dernys in keirin racing, people have been riding in excess of 150MPH for over 20 years. John Howard hit 152 MPH in 1985 at Bonneville, using the rig pictured above. That record stood for over 10 years until Fred Rompelberg bettered it in 1997.

Fred Rompelberg's ride


Using a specially built Colnago frame featuring a timing gear that allowed him to generate as much power in one turn as 4 turns of a regular geared bike,  Fred hit 167MPH riding behind another fairing equipped dragster.

Fred's Special Derny
This kind of bicycle speed record got started back in 1899 when Charlie Murphy went 60MPH on a special 2 miles of railroad tracks with plywood sheets laid down over the cross ties. Charlie hit 60 behind a speeding train with special 11 foot sidewings constructed behind the last car. He hit 60, slammed into the train, then got caught and dragged into the car just before he ran out of track.


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