100m
#2
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How about 8:00 a.m.?
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Why?
#6
Sr Member on Sr bikes
#7
Sr Member on Sr bikes
Wait! Does the OP mean a time for 100m...."m" = miles. or "m" = meters? Who times themselves for 100 meters on a bike?
Dan
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I think the op wants to benchmark himself.
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
#10
Senior Member
#11
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Fully laden or unladen?
#12
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I think the op wants to benchmark himself.
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
What's a good time for carrying a bike down a flight of stairs?
#14
Senior Member
I think the op wants to benchmark himself.
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
Short distance time trials should do the trick. I think 5, 10, and 20 mile distances should be easy to find.
Less than that, and certainly at 100 or 200 meters, literally nobody cares. Just how the sport is put together, that's all
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reminds me, I once tried to ride out of the saddle for the 1st mile of a 44 mile ride. forget how far I got before sitting down. sorry, it's Friday, couldn't resist
#17
Banned
Have a friend with a stopwatch up the street, that far, time you at the stoplight change starts ...
IHPVA has speed records for a 1/4 mile drag race & 4KM standing start.. and longer..
IHPVA - International Human Powered Vehicle Association
most are flying 200m speed/timing measured in the middle
the Hour record is always an Hour, but its how far you go in that hour that counts..
...
IHPVA has speed records for a 1/4 mile drag race & 4KM standing start.. and longer..
IHPVA - International Human Powered Vehicle Association
most are flying 200m speed/timing measured in the middle
the Hour record is always an Hour, but its how far you go in that hour that counts..
...
#18
Banned
motorpacing has the air pushed aside for you, then you can go 184 mph.. (183.98)
..
..
Last edited by fietsbob; 03-29-19 at 12:21 PM.
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Gonna burn some rubber with that 70t ring!
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Try riding a bike out on the street.
Here are some power calculations I did a while ago for another topic. Actual personal details don't matter for personal comparison.
Note, your gym bike may be able to spin up to 47 MPH quickly, while on the road, it may take several seconds of riding and pretty extreme effort just to do the acceleration.
And, then look at the power. Does your gym bike take into account the increased wind resistance from the higher speeds?
Once you get to the higher speeds, there are extreme benefits of aerodynamic bikes (TT/Tri bicycles).
Riders often even seek out tracks at high elevations to reduce wind resistance.
Here is the data from Bike Calculator that I put in earlier.
Note, 50 MPH takes about 10x the power to maintain as 20 MPH... and a heck of a lot of power to get up there.
Bike Calculator
Ok, so for some sample data:
220 lb rider (100 kilos)
20 lb bicycle
tubular wheels
Aerobars
70 degrees F
500 ft
0 grade
0 headwind
20 MPH --> 143 Watts (1.43 watts / kilo)
25 MPH --> 252 Watts (2.52 watts / kilo)
30 MPH --> 408 Watts (4.08 watts / kilo)
35 MPH --> 623 Watts (6.23 watts / kilo)
40 MPH --> 905 Watts (9.05 watts / kilo)
45 MPH --> 1265 Watts (12.65 watts / kilo)
50 MPH --> 1711 Watts (17.11 watts / kilo)
Now, let's try the same with the same parameters, Clinchers/Drops.
20 MPH --> 183 Watts (1.83 watts / kilo)
25 MPH --> 322 Watts (3.22 watts / kilo)
30 MPH --> 523 Watts (5.23 watts / kilo)
35 MPH --> 799 Watts (7.99 watts / kilo)
40 MPH --> 1162 Watts (11.62 watts / kilo)
45 MPH --> 1625 Watts (16.25 watts / kilo)
50 MPH --> 2200 Watts (22.00 watts / kilo)
WHEW!!!
Note the huge power differences when comparing speed with aerobars/tubulars vs drops/clinchers.
Ok, here's an often quoted chart to give one an idea of power for riding a bike.
https://cyclingtips.com/2017/06/just...road-cyclists/
Ok, looking at the chart...
A trained amateur should be able to get 30 to 35 MPH for up to a minute or so.
One gets up to Cat 1 and Pro levels to maintain that for 5 minutes.
The Pros should be able to put out the power to maintain 50 MPH for about 5 seconds, but they would struggle with putting out the power to accelerate from say 20 MPH to 50 MPH in open air which likely would take longer than the 5 seconds.
Here are some power calculations I did a while ago for another topic. Actual personal details don't matter for personal comparison.
Note, your gym bike may be able to spin up to 47 MPH quickly, while on the road, it may take several seconds of riding and pretty extreme effort just to do the acceleration.
And, then look at the power. Does your gym bike take into account the increased wind resistance from the higher speeds?
Once you get to the higher speeds, there are extreme benefits of aerodynamic bikes (TT/Tri bicycles).
Riders often even seek out tracks at high elevations to reduce wind resistance.
Here is the data from Bike Calculator that I put in earlier.
Note, 50 MPH takes about 10x the power to maintain as 20 MPH... and a heck of a lot of power to get up there.
Bike Calculator
Ok, so for some sample data:
220 lb rider (100 kilos)
20 lb bicycle
tubular wheels
Aerobars
70 degrees F
500 ft
0 grade
0 headwind
20 MPH --> 143 Watts (1.43 watts / kilo)
25 MPH --> 252 Watts (2.52 watts / kilo)
30 MPH --> 408 Watts (4.08 watts / kilo)
35 MPH --> 623 Watts (6.23 watts / kilo)
40 MPH --> 905 Watts (9.05 watts / kilo)
45 MPH --> 1265 Watts (12.65 watts / kilo)
50 MPH --> 1711 Watts (17.11 watts / kilo)
Now, let's try the same with the same parameters, Clinchers/Drops.
20 MPH --> 183 Watts (1.83 watts / kilo)
25 MPH --> 322 Watts (3.22 watts / kilo)
30 MPH --> 523 Watts (5.23 watts / kilo)
35 MPH --> 799 Watts (7.99 watts / kilo)
40 MPH --> 1162 Watts (11.62 watts / kilo)
45 MPH --> 1625 Watts (16.25 watts / kilo)
50 MPH --> 2200 Watts (22.00 watts / kilo)
WHEW!!!
Note the huge power differences when comparing speed with aerobars/tubulars vs drops/clinchers.
Ok, here's an often quoted chart to give one an idea of power for riding a bike.
https://cyclingtips.com/2017/06/just...road-cyclists/
Ok, looking at the chart...
A trained amateur should be able to get 30 to 35 MPH for up to a minute or so.
One gets up to Cat 1 and Pro levels to maintain that for 5 minutes.
The Pros should be able to put out the power to maintain 50 MPH for about 5 seconds, but they would struggle with putting out the power to accelerate from say 20 MPH to 50 MPH in open air which likely would take longer than the 5 seconds.
#24
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I suppose if you're racing cross a good standing start sprint has some value.
scott s.
.
scott s.
.
#25
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Try riding a bike out on the street.
Here are some power calculations I did a while ago for another topic. Actual personal details don't matter for personal comparison.
Note, your gym bike may be able to spin up to 47 MPH quickly, while on the road, it may take several seconds of riding and pretty extreme effort just to do the acceleration.
And, then look at the power. Does your gym bike take into account the increased wind resistance from the higher speeds?
Once you get to the higher speeds, there are extreme benefits of aerodynamic bikes (TT/Tri bicycles).
Riders often even seek out tracks at high elevations to reduce wind resistance.
Here is the data from Bike Calculator that I put in earlier.
Note, 50 MPH takes about 10x the power to maintain as 20 MPH... and a heck of a lot of power to get up there.
Bike Calculator
Ok, so for some sample data:
220 lb rider (100 kilos)
20 lb bicycle
tubular wheels
Aerobars
70 degrees F
500 ft
0 grade
0 headwind
20 MPH --> 143 Watts (1.43 watts / kilo)
25 MPH --> 252 Watts (2.52 watts / kilo)
30 MPH --> 408 Watts (4.08 watts / kilo)
35 MPH --> 623 Watts (6.23 watts / kilo)
40 MPH --> 905 Watts (9.05 watts / kilo)
45 MPH --> 1265 Watts (12.65 watts / kilo)
50 MPH --> 1711 Watts (17.11 watts / kilo)
Now, let's try the same with the same parameters, Clinchers/Drops.
20 MPH --> 183 Watts (1.83 watts / kilo)
25 MPH --> 322 Watts (3.22 watts / kilo)
30 MPH --> 523 Watts (5.23 watts / kilo)
35 MPH --> 799 Watts (7.99 watts / kilo)
40 MPH --> 1162 Watts (11.62 watts / kilo)
45 MPH --> 1625 Watts (16.25 watts / kilo)
50 MPH --> 2200 Watts (22.00 watts / kilo)
WHEW!!!
Note the huge power differences when comparing speed with aerobars/tubulars vs drops/clinchers.
Ok, here's an often quoted chart to give one an idea of power for riding a bike.
https://cyclingtips.com/2017/06/just...road-cyclists/
Ok, looking at the chart...
A trained amateur should be able to get 30 to 35 MPH for up to a minute or so.
One gets up to Cat 1 and Pro levels to maintain that for 5 minutes.
The Pros should be able to put out the power to maintain 50 MPH for about 5 seconds, but they would struggle with putting out the power to accelerate from say 20 MPH to 50 MPH in open air which likely would take longer than the 5 seconds.
Here are some power calculations I did a while ago for another topic. Actual personal details don't matter for personal comparison.
Note, your gym bike may be able to spin up to 47 MPH quickly, while on the road, it may take several seconds of riding and pretty extreme effort just to do the acceleration.
And, then look at the power. Does your gym bike take into account the increased wind resistance from the higher speeds?
Once you get to the higher speeds, there are extreme benefits of aerodynamic bikes (TT/Tri bicycles).
Riders often even seek out tracks at high elevations to reduce wind resistance.
Here is the data from Bike Calculator that I put in earlier.
Note, 50 MPH takes about 10x the power to maintain as 20 MPH... and a heck of a lot of power to get up there.
Bike Calculator
Ok, so for some sample data:
220 lb rider (100 kilos)
20 lb bicycle
tubular wheels
Aerobars
70 degrees F
500 ft
0 grade
0 headwind
20 MPH --> 143 Watts (1.43 watts / kilo)
25 MPH --> 252 Watts (2.52 watts / kilo)
30 MPH --> 408 Watts (4.08 watts / kilo)
35 MPH --> 623 Watts (6.23 watts / kilo)
40 MPH --> 905 Watts (9.05 watts / kilo)
45 MPH --> 1265 Watts (12.65 watts / kilo)
50 MPH --> 1711 Watts (17.11 watts / kilo)
Now, let's try the same with the same parameters, Clinchers/Drops.
20 MPH --> 183 Watts (1.83 watts / kilo)
25 MPH --> 322 Watts (3.22 watts / kilo)
30 MPH --> 523 Watts (5.23 watts / kilo)
35 MPH --> 799 Watts (7.99 watts / kilo)
40 MPH --> 1162 Watts (11.62 watts / kilo)
45 MPH --> 1625 Watts (16.25 watts / kilo)
50 MPH --> 2200 Watts (22.00 watts / kilo)
WHEW!!!
Note the huge power differences when comparing speed with aerobars/tubulars vs drops/clinchers.
Ok, here's an often quoted chart to give one an idea of power for riding a bike.
https://cyclingtips.com/2017/06/just...road-cyclists/
Ok, looking at the chart...
A trained amateur should be able to get 30 to 35 MPH for up to a minute or so.
One gets up to Cat 1 and Pro levels to maintain that for 5 minutes.
The Pros should be able to put out the power to maintain 50 MPH for about 5 seconds, but they would struggle with putting out the power to accelerate from say 20 MPH to 50 MPH in open air which likely would take longer than the 5 seconds.
Or am I looking for too much realism.
There is a track riding forum on BF - any insights over there?