Watts resistance in pedaling
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Watts resistance in pedaling
Postby DG » Sat Jul 27, 2013 12:14 pm
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Re: Watts resistance in pedaling
Postby Alex Simmons/RST » Sat Jul 27, 2013 1:27 pm
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Re: Watts resistance in pedaling
Postby vander » Sat Jul 27, 2013 6:56 pm
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Re: Watts resistance in pedaling
Postby winstonw » Sat Jul 27, 2013 7:26 pm
Q1. depends if you want to do short intervals, and how long for. If you want to sprint on your trainer for 5-10 seconds, you could easily exceed 460 watts, but you'd be driving the roller faster than 40kph. basically, you haven't given enough info about the models you've shortlisted.DG wrote: would someone who is an average rider need the extra resistance of the 460 watt trainer? I am interested to also know how many watts resistance an average rider can pedal for, say, half an hour at a go. Thank you.
Q2. go to a gym and get on a quality stationary ergometer with watts readout, and thrash yourself for 30 minutes (try and maintain the same pace from woe to go)....repeat it several times over a couple of weeks. the average is your answer. ..... or go to a closed criterium or cycle track, and do the same, and report back what your av speed was.
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Re: Watts resistance in pedaling
Postby toolonglegs » Sat Jul 27, 2013 9:32 pm
But anyway, on the road if you can hold 400w for 30 minutes, then you aren't really an average cyclist ... so either will probably be fine, I would go for the one with the biggest flywheel.
You might be able to hold 450w for 5minutes on the road... that often doesn't equate to indoors though.
Sprint training is best done outdoors.
Also make sure you buy a really powerful fan or two ... only way you will hold anywhere near what you do on the road indoors is if you can keep cool enough... once you start overheating power drops like a stone.
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Re: Watts resistance in pedaling
Postby dalai47 » Sat Jul 27, 2013 10:29 pm
Depends how heavy you are. Need to talk Watts/kg to know if those 400W are impressive or not...toolonglegs wrote: But anyway, on the road if you can hold 400w for 30 minutes, then you aren't really an average cyclist ...
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Re: Watts resistance in pedaling
Postby vander » Sat Jul 27, 2013 11:04 pm
400W is impressive irrespective of weight. If you are putting out 400W for 30min you will drop all but the best A graders on the flat. If you 100kg you will possibly not be smashing the hills (still going well in all but A grade possibly even going OK in A grade) but on the flats you will be ridiculously strong.dalai47 wrote:Depends how heavy you are. Need to talk Watts/kg to know if those 400W are impressive or not...toolonglegs wrote: But anyway, on the road if you can hold 400w for 30 minutes, then you aren't really an average cyclist ...
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Re: Watts resistance in pedaling
Postby toolonglegs » Sat Jul 27, 2013 11:41 pm
YOU might drop them if you are aero and they are not sitting on your date .vander wrote:400W is impressive irrespective of weight. If you are putting out 400W for 30min you will drop all but the best A graders on the flat. If you 100kg you will possibly not be smashing the hills (still going well in all but A grade possibly even going OK in A grade) but on the flats you will be ridiculously strong.dalai47 wrote:Depends how heavy you are. Need to talk Watts/kg to know if those 400W are impressive or not...toolonglegs wrote: But anyway, on the road if you can hold 400w for 30 minutes, then you aren't really an average cyclist ...
Mag trainers don't care about power to weight ... but OP did say "average cyclist" ... 400 w for 30 minutes means an FTP pretty damn close to that... like Vander says, not really what your average punter puts out even at 100kgs.
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Re: Watts resistance in pedaling
Postby vander » Sat Jul 27, 2013 11:51 pm
Just have to be smart enough to get a 10m gap then its game over!toolonglegs wrote:
YOU might drop them if you are aero and they are not sitting on your date .
Mag trainers don't care about power to weight ... but OP did say "average cyclist" ... 400 w for 30 minutes means an FTP pretty damn close to that... like Vander says, not really what your average punter puts out even at 100kgs.
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Re: Watts resistance in pedaling
Postby ausrandoman » Sun Jul 28, 2013 3:40 am
That's the best malapropism I've seen in a long timewinstonw wrote: (try and maintain the same pace from woe to go)
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Re: Watts resistance in pedaling
Postby ausrandoman » Sun Jul 28, 2013 3:48 am
I'm grey hair + hearing aids + bifocal glasses years old and even I commonly put out bursts of more than 460 W for a few seconds. But a few minutes? Not a hope.DG wrote:One has 425 watts resistance at 40km/h and the other has 460 watts at 40km/h. My question is solely about the amount of resistance: would someone who is an average rider need the extra resistance of the 460 watt trainer?
Unless there is some other factor like floorspace, noise or price, why wouldn't you just get the 460 W version? It would do everything the 425 W unit does plus 35 W.
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Re: Watts resistance in pedaling
Postby toolonglegs » Mon Jul 29, 2013 5:49 am
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Re: Watts resistance in pedaling
Postby winstonw » Mon Jul 29, 2013 7:51 am
I'll blame that day's 140km ride, while on a diet.ausrandoman wrote:That's the best malapropism I've seen in a long timewinstonw wrote: (try and maintain the same pace from woe to go)
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Re: Watts resistance in pedaling
Postby Xplora » Fri Aug 02, 2013 9:35 am
So it would make little difference. You might as well be a tightwad and save the 20 bucks and spend it on a sweatband because it will probably be just as useful in the long run.
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Re: Watts resistance in pedaling
Postby vander » Fri Aug 02, 2013 2:01 pm
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Re: Watts resistance in pedaling
Postby Xplora » Fri Aug 02, 2013 3:57 pm
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Re: Watts resistance in pedaling
Postby nickobec » Sun Aug 04, 2013 11:42 pm
I can put out 250 watts over 30 minutes, have broken 26 minutes on 16km TT
The riders who are 2 minutes faster than me over 16km put out 300 watts (I follow a couple on Strava)
The KOM on strava put out 350 watts for 22 minutes (he rode with powermeter), the course record holder probably put out 400 watts for 20 minutes but he an Australia Champion of the track and part time NRS rider. Most world tour pros would be happy with 450 watts over 30 minutes, with a couple of exceptions like the world TT champion and runner up mange 500 watts, who could put out close to 500 watts over 30 minute
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Re: Watts resistance in pedaling
Postby thearthurdog » Mon Aug 05, 2013 5:28 am
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Re: Watts resistance in pedaling
Postby vander » Mon Aug 05, 2013 7:26 am
This data is so far off its not funny. Very few pros are doing 450W for 30min.nickobec wrote: The KOM on strava put out 350 watts for 22 minutes (he rode with powermeter), the course record holder probably put out 400 watts for 20 minutes but he an Australia Champion of the track and part time NRS rider. Most world tour pros would be happy with 450 watts over 30 minutes, with a couple of exceptions like the world TT champion and runner up mange 500 watts, who could put out close to 500 watts over 30 minute
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Re: Watts resistance in pedaling
Postby Xplora » Mon Aug 05, 2013 9:35 am
Probably don't need to... a "big" rider is still only 80kgs on the tour. I'm sure TLL can put out watts to shame them all, but at 100kgs he needs them to simply keep up. My rough and ready figures have me pumping around 300W for 30 minutes (really need a proper PM lol) at 71kgs... my mind boggles that most of the pros are achieving better numbers for most of the day.vander wrote:This data is so far off its not funny. Very few pros are doing 450W for 30min.nickobec wrote: The KOM on strava put out 350 watts for 22 minutes (he rode with powermeter), the course record holder probably put out 400 watts for 20 minutes but he an Australia Champion of the track and part time NRS rider. Most world tour pros would be happy with 450 watts over 30 minutes, with a couple of exceptions like the world TT champion and runner up mange 500 watts, who could put out close to 500 watts over 30 minute
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Re: Watts resistance in pedaling
Postby toolonglegs » Mon Aug 05, 2013 3:36 pm
SO there you go mate... you need to find another 35% ... I on the other hand have the necessary power... I just have to lose another 25 kgs ( down from 92! ) to get a pro power to weight ratio .
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Re: Watts resistance in pedaling
Postby Xplora » Mon Aug 05, 2013 7:44 pm
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Re: Watts resistance in pedaling
Postby nickobec » Mon Aug 05, 2013 9:25 pm
Probably should of prefaced that as a 75kg TT rider not a 62kg climber, because I was talking TT timesvander wrote:This data is so far off its not funny. Very few pros are doing 450W for 30min.
450W for 30 minutes is close to an FTP of 435W, which for a 75kg rider is 5.8W/kg. If you look at Allen & Coggan dreaded power profile chart, a world tour rider should have an FTP in the range of 5.7W/kg to 6.4W/kg (68kg at 6.4W/kg = 435W)
ps I weigh 80kg, but could lose 5kg, the rider I know who puts out 300w over 24 minutes in close to 75kg, and the 16km course record holder is a few kgs lighter
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Re: Watts resistance in pedaling
Postby vander » Mon Aug 05, 2013 10:02 pm
300W over 24min is a very long was from 450W for 30min.
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Re: Watts resistance in pedaling
Postby toolonglegs » Mon Aug 05, 2013 11:20 pm
Doesn't seem like much... but then there is no point comparing watts from one rider to another... all that really matters is results .vander wrote:Durbridge at around 80kg did 420ishW in the world TT a few years back (around an hour effort), he placed 6th or 7th.
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