- Obree – Building the worlds fastest bicycle
Mr Obree is a big hero of mine. I think he’s nuts, and this project is nuts, but…. many people have said that before about him and he’s usually proved them wrong.Posted 5 years agorootes1Member
I think the record on a recumbent is 85 mph
82.819mph 2009 Sam Whittingham
Hope man Obree beats it!Posted 5 years agokcrMember
Previous discussion here:Posted 5 years ago
Obree is far from “nuts”. If you look past the eccentricities, he is an extremely focussed and motivated athlete, and I hope he manages to crack the record.
I think the “100mph” thing is just a handy publicity hook, and the basic physics make it very difficult to add 18mph to the existing record speed. The Dutch students from Delft University, who have one of the fastest existing bikes have calculated they can get to 90mph with their current pilot. Check out the website to compare and contrast their hi-tech approach with Obree’s kitchen: http://hptdelft.nl/en/
Obree is a highly original thinker, but a lot of experience and creative thinking has already been applied to this record by various people, including “pro-cumbent” designs like Obree’s.
Interesting discussion by some recumbent riders and other competitors here:
My maths makes it 90mph at 95rpm cadence.
But gear inches have always confused me – “metres of development” has always made more sense to me.
edit: (my reasoning) I think 320″ doesn’t equal 320 inches of forward movement per rev. You have to times it by Pi to get that.Posted 5 years ago
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