Originally Posted by will dehne
I searched the BF and came up with blanks.
Does anyone have data on Acceleration from standing still to let us say 22 MPH?
Why 22 MPH? I get unstable biking standing up at speed above that.
I used a Treck Hybrid for this today. Total weight with Treck stem mounted bag is 38#.
Tires 700 x 38.
On smooth limestone trail.
No wind.
0 to 22 MPH in 20 seconds. (I have not the slightest idea if that is good or bad) Perhaps I can do better.
You know that it is common to talk about cars accelerating from 0 to some speed, so why not for a bike?
I will test this soon with my Treck Madone. That should be interesting.
Jppe, are you there? I think you would know this kind of data.
Will, if you pedal up to 22 mph in 20 sec from a standing start, your acceleration is about 1/20 of the force of gravity. Cars typically accelerate in traffic at between 5 % (i.e. 1/20) to 30 % of gravity.
If we're talking about bicycle drag racing, I think, like a race car, you'd need to find the cadence at which you can produce the highest sustainable power, then arrange a gearset and shift mechanism to keep yourself at the peak output as the wheel and pedal speeds increase. Positioin and pedalling technique would be critical to stay stable as you say. I wonder if anyone has tried to engineer this sort of thing in the HPV world?
Or just find the best comfortable fixie gear, start in such a way that you don't hurt yr knees, and haul out.
Interesting ot see what you'll do on your road bike!
Road Fan
Systems engineer