Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Road Cycling (https://www.bikeforums.net/road-cycling/)
-   -   Strava Power for noobs (https://www.bikeforums.net/road-cycling/1106013-strava-power-noobs.html)

jeffreythree 04-28-17 10:21 PM

I am not sure I trust Strava's power estimates for comparison with others, maybe for short segment efforts or other local riders encountering the same conditions. Wind really seems to throw it off, and it thinks I am really slacking when I am actually fighting a headwind. I do think it is useful to see if your power is trending up over time.

Seattle Forrest 04-29-17 09:00 AM


Originally Posted by Abe_Froman (Post 19546025)
I dunno. Maybe it's just from growing up around here...but hills demoralize me. So much effort to go so slow...much nicer to see the effort translate to actual speed on the flats.

But you go down the other side. Wind doesn't have that. Wind is like an evil nightmare hill.

Abe_Froman 04-29-17 09:14 AM


Originally Posted by Seattle Forrest (Post 19546574)
But you go down the other side. Wind doesn't have that. Wind is like an evil nightmare hill.

Sure it does. Tailwind on the way back haha :)

99Klein 04-29-17 09:51 AM


Originally Posted by FlashBazbo (Post 19545805)
Of course Strava "power" may or may not have any relationship to the actual power that you produce. It's a guess based on everything except the power that you produce. Sometimes, it gets within 25 or 30%, but it is often a long, long way from accurate.


That's a long way of saying that I'm not sure the answer you get is going to be a real answer, either.

Without a power meter, you just as well fill in the "power" estimate with whatever you want. Look more at time or (here come the flames) average speed on that segment, and compare you time's' with others, keeping in mind that the further up the segment leader board you go, the stronger the tailwind probably was:)

lsberrios1 04-29-17 09:54 AM

130-170 watts probably for the average cyclist. 200-300 for a pretty good one. 300+ for a seasoned racer.

Seattle Forrest 04-29-17 10:00 AM


Originally Posted by Abe_Froman (Post 19546590)
Sure it does. Tailwind on the way back haha :)

Ours change too much for that. :(

Abe_Froman 04-29-17 10:10 AM


Originally Posted by Seattle Forrest (Post 19546663)
Ours change too much for that. :(

Hah, well ours does too, but typically not drastic changes within an individual ride.

What really sucks is a 20mph headwind out of the north on the commute into work...then it changes and I fight a 20mph headwind going home in the evening.

caloso 04-29-17 10:28 AM

Strava power estimates are pretty worthless, particularly in flat, windy conditions like yours. See this post: http://www.bikeforums.net/19545157-post30.html

Abe_Froman 04-29-17 10:49 AM


Originally Posted by caloso (Post 19546709)
Strava power estimates are pretty worthless, particularly in flat, windy conditions like yours. See this post: http://www.bikeforums.net/19545157-post30.html

Well yes of course strava does not account for wind. However...in calm winds, or when beginning and ending a ride at the same point...I SHOULD be close-ish.

Seattle Forrest 04-29-17 11:52 AM


Originally Posted by Abe_Froman (Post 19546682)
Hah, well ours does too, but typically not drastic changes within an individual ride.

What really sucks is a 20mph headwind out of the north on the commute into work...then it changes and I fight a 20mph headwind going home in the evening.

What really sucks is coming around a curve descending a mountain road at 40 mph and a sudden gust wants to turn your wheel for you. :eek:

Come visit! Bring your new bike.

Seattle Forrest 04-29-17 11:53 AM

Ok, I've got to run an errand, I don't want to drive through traffic and find parking, and it's gonna rain in a few hours, so I gotta ride.

99Klein 04-29-17 11:55 AM


Originally Posted by Abe_Froman (Post 19546737)
Well yes of course strava does not account for wind. However...in calm winds, or when beginning and ending a ride at the same point...I SHOULD be close-ish.


Ride with someone close to the same weight, who has a power meter. Side by side on a segment and you'll see that Strava is not even "close-ish." I've ridden with my phone (no power meter) and my Garmin (power meter) both running on the same ride, and Strava will be high or low by literally a hundred watts or better. It's useless.

rm -rf 04-29-17 12:07 PM


Originally Posted by Abe_Froman (Post 19545714)
So, I'm sure this is a noob question...what what's a reasonable average power output on strava for a ride of about 10 miles?

Just trying to see how far I need to go to avoid embarrassment. ..

Embarrassment doing what?
(Just riding more than 10 miles cancels any embarrassment!)


Originally Posted by lsberrios1 (Post 19546652)
130-170 watts probably for the average cyclist. 200-300 for a pretty good one. 300+ for a seasoned racer.

Yes. These are averages for the whole ride, and actual watts from a power meter, not estimates. Sprints and hills are much higher. A ride that averaged 140 watts might have it's highest 10 minutes at 250w, and 30 seconds at 450w.

On my local cycle club rides: These tend to be mostly older riders, in their 40s to 60s, and riding anywhere from 40 to 150 miles a week in the warm weather. Rides are typically 2 to 3 hours of moving time.

90-100 watts average would be a typical "C" group, doing maybe 16-18 mph on the flat roads.
130-170 sounds about right for the "B" group, maybe 19-20 mph on the flats.
No experience with the "A" group!

Abe_Froman 04-29-17 12:12 PM


Originally Posted by rm -rf (Post 19546870)
Embarrassment doing what?
(Just riding more than 10 miles cancels any embarrassment!)



Yes. These are averages for the whole ride. Sprints and hills are much higher. A ride that averaged 140 watts might have it's highest 10 minutes at 250w, and 30 seconds at 450w. (Actual watts from a power meter, not estimates.)

On my local cycle club rides: These tend to be mostly older riders, in their 40s to 60s, and riding anywhere from 40 to 150 miles a week in the warm weather. Rides are typically 2 to 3 hours of moving time.

100 watts average would be a typical "C" group, doing maybe 16-18 mph on the flat roads.
130-170 sounds about right for the "B" group, maybe 19-20 mph on the flats.
No experience with the "A" group!

Hrmm. Thanks everybody for the help. So it seems I'm probably not quite as slow as I thought I was. I should probably just jump in and find some group rides :o

Abe_Froman 04-29-17 12:14 PM


Originally Posted by Seattle Forrest (Post 19546844)
What really sucks is coming around a curve descending a mountain road at 40 mph and a sudden gust wants to turn your wheel for you. :eek:

Come visit! Bring your new bike.

I'd love to. Getting away from work/family is going to be pretty hard for the next year or two though, unfortunately.

rm -rf 04-29-17 12:39 PM


Originally Posted by Abe_Froman (Post 19546876)
Hrmm. Thanks everybody for the help. So it seems I'm probably not quite as slow as I thought I was. I should probably just jump in and find some group rides :o

Go try one!
My local rides vary from maybe 12 mph up to the low 20s average for the ride.

I suggest contacting the ride leader in advance. Find out their typical flat road speeds -- sometimes the rides get faster than the posted speeds if a lot of fast riders push the pace.

Start with an easy paced ride. You can see how you do, and learn some of the hand and voice signals, and get used to riding with other riders. Let them know you are new to group rides, and you'll get lots of encouragement. These slower rides are more casual, typically not drafting closely, and do lots of regrouping if the riders get spread out.

Then you can try a faster ride. I like both types, the conversational paced rides, and the ones that are just a little too hard for me, where I'm hanging in the draft, working hard to stay in the group.

Abe_Froman 04-29-17 01:03 PM


Originally Posted by rm -rf (Post 19546916)
Go try one!
My local rides vary from maybe 12 mph up to the low 20s average for the ride.

I suggest contacting the ride leader in advance. Find out their typical flat road speeds -- sometimes the rides get faster than the posted speeds if a lot of fast riders push the pace.

Start with an easy paced ride. You can see how you do, and learn some of the hand and voice signals, and get used to riding with other riders. Let them know you are new to group rides, and you'll get lots of encouragement. These slower rides are more casual, typically not drafting closely, and do lots of regrouping if the riders get spread out.

Then you can try a faster ride. I like both types, the conversational paced rides, and the ones that are just a little too hard for me, where I'm hanging in the draft, working hard to stay in the group.

I tried ONE last year. Most of the ride was right about my speed. Then for about a 5-7 mile stretch...they dialed it up another notch. Fastest I've ever been on a bike without mitigating circumstances, such as tailwind. 22-25mph...I was gassed at the end but I hung in there. Ended up with a calf strain that put me at lower speed/distance for the rest of the season though lol. I was definitely going beyond what I was used to. I'm trying to be a bit smarter about things and not push my body past what it's prepared for...I'm pushing 40 and things don't seem as forgiving as they were 15 years ago lol :mad:

In retrospect...I think part of the problem was riding 10 miles to the ride start...then 10 miles home. 50+ miles with some seriously strenuous stretches was just way more than my legs were prepared for.

rubiksoval 04-29-17 01:44 PM


Originally Posted by Abe_Froman (Post 19545732)
Well i don't ride with anyone right now. Just wondering what would be considered 'respectable' over 10 miles riding solo. Going hard but not to exhaustion.

And obviously I'm looking for gery rough ranges...like 150 250 or 1000?

1000. Definitely 1000. Unless you're over 200 lbs. Then it's 2000.

rubiksoval 04-29-17 01:46 PM


Originally Posted by goenrdoug (Post 19545816)
^ completely agree with this. However, if the Strava number is the one you always compare to your own effort level, it'll be the scale you work with. In that way it can be a valuable training metric for an individual without other resources.


Not really, unless you're doing the same route in the same conditions every day.

Tail wind? Strava is useless. Headwind? Useless. Drafting anyone? Useless. Etc., etc.

reggieray 04-29-17 07:24 PM

Did we figure out if the thread starter is riding with a power meter?

Abe_Froman 04-29-17 07:45 PM


Originally Posted by reggieray (Post 19547495)
Did we figure out if the thread starter is riding with a power meter?

Hah i am definitely not. Platform pedals and baggy shorts :)

woodcraft 04-29-17 11:20 PM

2 Attachment(s)
Here's an illustration of the flat vs. hill thing from today's ride.

There's not much flat where I live, but hit a several mile stretch- the blurry pic- aved. about 180w,

& a hill for comparison. We powered up a low hill near the end, & got close to 300w for about a minute.

I'm not especially strong but tend to be in the top 1/3 of Strava segments, so don't see how a 300w average is realistic.

The fastest local club/team training ride averages over 20 mph & you see ~ 220w averages.

I know the question was about a 10 mile ride, but still.

HTupolev 04-29-17 11:51 PM


Originally Posted by Abe_Froman (Post 19546025)
I dunno. Maybe it's just from growing up around here...but hills demoralize me. So much effort to go so slow...much nicer to see the effort translate to actual speed on the flats.

A better way to think about it.

Effort translates far more directly to performance on steep climbs than on the flats. Up the climb, if you double your power, you just about double your speed. On the flats... not even close, thanks to air drag increasing sharply with speed.

reggieray 04-30-17 06:34 PM

If your primary goal was to go fast on flats you should get a recumbent.

X amount of power for a given distance is a useless way to think about the issue. It is far better to break the problem down by time, ie, What is my best power for 1 minute? 5 minutes? 20 minutes?

And any discussion of power is useless without a power meter.

You can get the DT Swiss rear PowerTap wheel for $700. One of the lower end Power2Max cranks will cost even less than that.

Abe_Froman 05-01-17 07:07 AM


Originally Posted by reggieray (Post 19549508)
If your primary goal was to go fast on flats you should get a recumbent.

X amount of power for a given distance is a useless way to think about the issue. It is far better to break the problem down by time, ie, What is my best power for 1 minute? 5 minutes? 20 minutes?

And any discussion of power is useless without a power meter.

You can get the DT Swiss rear PowerTap wheel for $700. One of the lower end Power2Max cranks will cost even less than that.

Well like I said before...I'm currently on a steel touring/cyclocross bike. $700 seems a bit over the top for an accessory seeing as how I havent gotten a proper road bike yet.


All times are GMT -6. The time now is 02:17 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.