Hey Steve! I just landed here by sheer coincidence! I just saw your recent coverage on the Arc Of Attrition 2022 which was absolutely spectacular btw! Great job! My Stryd has been giving me some headaches lately, so I searched for some insight, and you popped up! Great stuff! Thanks ;) Cheers mate
I would say your results are similar to mine with the Stryd Wind. I also found it tends to measures a little "short" both outdoors and on the treadmill. Outside a calibration somewhere around 102.5 gives me a "better" distance than uncalibrated. If you had to go 10.17K actually on a track to regisgter 10K on the Stryd then that would give 101.7 calibration and so fairly similar. On the treadmill it seems to be even "slower" and I have the same MYRUN Technogym one as you. I've run on it - well sort of as I hit my head on your low roof :) That said the distances it gives are very similar run to run so if you apply that calibration "offset" you have a very usable device especially on a treadmill. Outdoors though I tend to just use GPS as seems to work well enough for me. Noticeable also that the power averages in this outdoor test were less suspectible to the distance measured and a Stryd is first and foremost a power measuring (or at least estimating) device IMHO.
Tim agree with you,I bought the stryd wind and i have to set at 102.0 because it tends to be shorter in the measurements 🙄 I'm thinking in return the stryd,I thought it was accurate out of the box but I'm a little bit disappointed
- It is not clear if the measuring wheel was verified from the info given in this video. I recommend verifying the wheel against a steel ruler to ensure its absolute accuracy. - Measuring wheels are not meant for running. Measuring wheels are only meant for walking at a constant pace. The stochastic nature of a runner’s speed changes, bobbing of the runner (light/heavy pressure on the ground), and weaving of the wheel will cause inconsistencies across tests and second-by-second variability in the wheel readout. - No technology is 100.00% perfect. We have never claimed Stryd is 100.00% perfect. Stryd is only the most accurate source of pace/distance for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill. (However, many others have made the claim that Stryd is perfect because Stryd is really excellent and has proven to be perfect for many runners.) - If you compare Stryd against a more accurate and precise source of pace and distance (such as a measured & marked track), you can apply a scaling factor to Stryd’s pace and distance to fine tune the accuracy of Stryd. - Based on your data collection methods, I would not use these results to fine tune the accuracy of Stryd. I would recommend going to a track and measuring that track in order to have a higher confidence & precision in your results. - You made a claim that all races are exact distance. Unless you run on the marked line, know the marked line is the proper distance, and know that the start/stop points were placed in the correct location, you cannot know that you ran the exact distance in that particular race.
I have never, ever made a claim that all races are an exact distance. I'm a trail runner!! Of course I know that isn't true. However, a 10000m race round a track is 25 laps of the track, regardless. Furthermore, a licensed race will almost never measure short. Verified race courses are deliberately measured slightly long. The measuring wheel has measured 400m round a track perfectly and in this experiment, has measured 10000m better than both the Stryd Wind and the old Stryd. GPS was by far the nearest measure to the measuring wheel. The measuring wheel manual states it has a margin of error of 0.5%. We also know that on a straight course GPS tends to measure slightly long, suggesting even more firmly that the measuring wheel is correct. The track test video has very similar results and my 4 years of using the Stryd has numerous examples of similar results. 2% error rate is very good indeed. But in this video and in the track test video, the Stryd did not beat the measuring wheel or GPS. However, just for you guys, I will validate the measuring wheel and I will walk the 10k route. "Stryd is only the most accurate source of pace/distance for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill." I just don't accept this. I run almost every single day on a treadmill and outdoors and almost always with the Stryd. I'm not stupid. I have more experience with the Stryd and with treadmill running than the vast majority of other Stryd users. I know what it does. In general, the old Stryd tends to measure short of the correct distance and the Stryd Wind measures further than the correct distance. On a treadmill both measure short of the correct distance but the old Stryd is closer to the speed of the belt, which to all intents and purposes is the speed that matters.
@@FilmMyRun "The measuring wheel has measured 400m round a track perfectly" This is not a valid way of verifying the wheel since you do not know the actual distance of the track nor the actual path you ran on the track. "and in this experiment, has measured 10000m better than both the Stryd Wind and the old Stryd. GPS was by far the nearest measure to the measuring wheel. The measuring wheel manual states it has a margin of error of 0.5%... the Stryd did not beat the measuring wheel or GPS." We don't know how far you actually ran in this test, so it is not possible to claim that any method was better than any other method. "I will validate the measuring wheel and I will walk the 10k route." A measurement must take place on a marked path, and even then, results will only be within 0.5% given the margin of error on the wheel.
@@Stryd Honestly I think you're digging for excuses and there's no need. The wheel is fine. It is 1 metre in circumfrance with a diameter of 318mm. The track is 400m. I ran as even a line as you could expect round the track. In the track test I ran 400m give or take a few centimetres. In today's test I ran 10000m give or take a few metres with a perfectly good measuring wheel. I am happy to walk the course, but honestly theres no need. The Stryd is accurate to less than 2%. That's fine. It's good even.
@@FilmMyRun "Honestly I think you're digging for excuses and there's no need" Your test is flawed and you are making claims not supported by your test. "The wheel is fine. It is 1 metre in circumfrance with a diameter of 318mm." Was this verified against a steel ruler? Your wheel has a tolerance of 0.5%. "The track is 400m." Did you verify this? We have found tracks that are off up to 1%. " I ran as even a line as you could expect round the track." Did you run on a measured line or did you just run around the track? Running on the inside vs outside of the lane is a 0.3% difference. All of these things matter, especially when you are making claims on Stryd's accuracy. If you claim Stryd is off by 2% but you have a 1.3% uncertainty in your methods, your claim that Stryd needs calibration is unfounded!
@@Stryd Always excuses. Let’s assume this track has 400m and by accident the measurement wheel shows the same. Hm. Strange. What does matter is: I am running a race. Three colleagues with 3 different watches are staying inside 1% error. Not by accident. Me with Stryd: my error is suming up: Now the recommendation from Stryd: Measure wheel bla bla. Sorry. It’s not true that Stryd is fine out of the box. Check it like this: search for a few colleagues with Stryd. Set all calibration factors to 1. Then go out for a run. What should I expect? All distances after 30k stay within 1% margin? Because Stryd is so good? I tell you what: You will be VERY surprised. We were very confused seeing the result ;). There is so much variation that you will never trust this Statement: „Accurate out of the box“ anymore 😂 So you have to calibrate it. But then it’s calibrate especially for your shoe. Use a different kind of shoe will lead to: New calibration factor. Stryd team will tell you: make sure that it is exactly the same position bla bla bla. There you can see. Variations. Lots of. I think as least the same as GPS in my case
@@FilmMyRun Many others have made the claim that Stryd is perfect because Stryd is really excellent and has proven to be perfect for many runners. That being said, no technology is 100.00% perfect. We have never claimed Stryd is 100.00% perfect. Stryd is only the most accurate source of pace/distance among wearable technologies for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill.
Thank you for your videos. Please do a Stryd track calibration video. First Please calibrate the wheel with a 10 meter steel meter, Check (with the wheel) if your local track is well marked. If a IAAFT standard layout type track: Line between lane 1/2 405.624 meters Line between lane 2/3 413.290 meters Line between lane 3/4 420.955 meters Line between lane 4/5 428.621 meters Do the 24 x Line between lane 3/4 (24 x 420.955 meters = 10103 meters) run, counter clock wise With the foot that has Stryd over the line between lanes Start and finish the run with the same foot (in the start marking)
@@FilmMyRun You've done a good job, in fact you saved me buying one. I'd also have had to buy a new watch because my Garmin 45 will not (apparently) work with Stryd.
I just bought a stryd footpod. Have I just wasted my money. My main goal is for daily outdoor runs using power on my very hilly route. I dont live in a flat area. Heart rate tends to lag quite a bit. Thanks
No, not at all. The Stryd is a power meter. Obviously the 'power' it measures is not your real power output. There is no way it can properly measure that. So it makes a decent estimate of your power. The Stryd's inaccuracy with pace and distance is not a big issue. You can calibrate the Stryd to a known distance or you can simply use GPS. Both are perfectly acceptable and will not affect the power numbers generated by your Stryd.
I have Stryd and honestly I do not get how you can define calibration something that happens on my fenix 5 plus automatically ...I was doing rep of 400 mt...Stryd was adding 20 mt all the time...really disappointing. I consider Stryd a joke...you cannot build up a mountain of data based on a wrong distance. It is not making sense.
Stryd is not as "perfect" as they pretend it is that's for sure (expect variations of up to 4% as per scientific studies), having said that what you could do is set calibration to 400/420=95.2 on your Fenix 5 and turn off "auto-calibration". This should help...until the "variation" kicks in and/or you change shoes. Also double-check that you are using Stryd for "pace"="always" and also "distance=always".
Exactly, Stryd basically deny in spite of all evidence and common sense that their devices are anything less than 100% perfect. If they had any sense of decency they would just state the ACCURACY of their device like any honest cycling power meter company does.
A Stryd is an very expensive gadget. It’s not accurate at all I have the same experience. But more worse. Gps has an error. That’s true. But Stryd has more error. Calibration of this fancy thing is also very hard to do. They are posting instructions. But it’s really hard to make it as good as you need. You will see the result on longer distances. The error will sum up. The gps error will average out.
Hey Steve! I just landed here by sheer coincidence! I just saw your recent coverage on the Arc Of Attrition 2022 which was absolutely spectacular btw! Great job! My Stryd has been giving me some headaches lately, so I searched for some insight, and you popped up! Great stuff! Thanks ;) Cheers mate
I get everywhere!!
I would say your results are similar to mine with the Stryd Wind. I also found it tends to measures a little "short" both outdoors and on the treadmill. Outside a calibration somewhere around 102.5 gives me a "better" distance than uncalibrated. If you had to go 10.17K actually on a track to regisgter 10K on the Stryd then that would give 101.7 calibration and so fairly similar. On the treadmill it seems to be even "slower" and I have the same MYRUN Technogym one as you. I've run on it - well sort of as I hit my head on your low roof :) That said the distances it gives are very similar run to run so if you apply that calibration "offset" you have a very usable device especially on a treadmill. Outdoors though I tend to just use GPS as seems to work well enough for me. Noticeable also that the power averages in this outdoor test were less suspectible to the distance measured and a Stryd is first and foremost a power measuring (or at least estimating) device IMHO.
Tim agree with you,I bought the stryd wind and i have to set at 102.0 because it tends to be shorter in the measurements 🙄 I'm thinking in return the stryd,I thought it was accurate out of the box but I'm a little bit disappointed
How do you determine how long the treadmill goes?
- It is not clear if the measuring wheel was verified from the info given in this video. I recommend verifying the wheel against a steel ruler to ensure its absolute accuracy.
- Measuring wheels are not meant for running. Measuring wheels are only meant for walking at a constant pace. The stochastic nature of a runner’s speed changes, bobbing of the runner (light/heavy pressure on the ground), and weaving of the wheel will cause inconsistencies across tests and second-by-second variability in the wheel readout.
- No technology is 100.00% perfect. We have never claimed Stryd is 100.00% perfect. Stryd is only the most accurate source of pace/distance for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill. (However, many others have made the claim that Stryd is perfect because Stryd is really excellent and has proven to be perfect for many runners.)
- If you compare Stryd against a more accurate and precise source of pace and distance (such as a measured & marked track), you can apply a scaling factor to Stryd’s pace and distance to fine tune the accuracy of Stryd.
- Based on your data collection methods, I would not use these results to fine tune the accuracy of Stryd. I would recommend going to a track and measuring that track in order to have a higher confidence & precision in your results.
- You made a claim that all races are exact distance. Unless you run on the marked line, know the marked line is the proper distance, and know that the start/stop points were placed in the correct location, you cannot know that you ran the exact distance in that particular race.
I have never, ever made a claim that all races are an exact distance. I'm a trail runner!! Of course I know that isn't true. However, a 10000m race round a track is 25 laps of the track, regardless. Furthermore, a licensed race will almost never measure short. Verified race courses are deliberately measured slightly long.
The measuring wheel has measured 400m round a track perfectly and in this experiment, has measured 10000m better than both the Stryd Wind and the old Stryd. GPS was by far the nearest measure to the measuring wheel. The measuring wheel manual states it has a margin of error of 0.5%. We also know that on a straight course GPS tends to measure slightly long, suggesting even more firmly that the measuring wheel is correct.
The track test video has very similar results and my 4 years of using the Stryd has numerous examples of similar results.
2% error rate is very good indeed. But in this video and in the track test video, the Stryd did not beat the measuring wheel or GPS. However, just for you guys, I will validate the measuring wheel and I will walk the 10k route.
"Stryd is only the most accurate source of pace/distance for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill."
I just don't accept this. I run almost every single day on a treadmill and outdoors and almost always with the Stryd. I'm not stupid. I have more experience with the Stryd and with treadmill running than the vast majority of other Stryd users. I know what it does. In general, the old Stryd tends to measure short of the correct distance and the Stryd Wind measures further than the correct distance. On a treadmill both measure short of the correct distance but the old Stryd is closer to the speed of the belt, which to all intents and purposes is the speed that matters.
@@FilmMyRun "The measuring wheel has measured 400m round a track perfectly"
This is not a valid way of verifying the wheel since you do not know the actual distance of the track nor the actual path you ran on the track.
"and in this experiment, has measured 10000m better than both the Stryd Wind and the old Stryd. GPS was by far the nearest measure to the measuring wheel. The measuring wheel manual states it has a margin of error of 0.5%... the Stryd did not beat the measuring wheel or GPS."
We don't know how far you actually ran in this test, so it is not possible to claim that any method was better than any other method.
"I will validate the measuring wheel and I will walk the 10k route."
A measurement must take place on a marked path, and even then, results will only be within 0.5% given the margin of error on the wheel.
@@Stryd Honestly I think you're digging for excuses and there's no need. The wheel is fine. It is 1 metre in circumfrance with a diameter of 318mm. The track is 400m. I ran as even a line as you could expect round the track. In the track test I ran 400m give or take a few centimetres. In today's test I ran 10000m give or take a few metres with a perfectly good measuring wheel. I am happy to walk the course, but honestly theres no need. The Stryd is accurate to less than 2%. That's fine. It's good even.
@@FilmMyRun
"Honestly I think you're digging for excuses and there's no need"
Your test is flawed and you are making claims not supported by your test.
"The wheel is fine. It is 1 metre in circumfrance with a diameter of 318mm."
Was this verified against a steel ruler? Your wheel has a tolerance of 0.5%.
"The track is 400m."
Did you verify this? We have found tracks that are off up to 1%.
" I ran as even a line as you could expect round the track."
Did you run on a measured line or did you just run around the track? Running on the inside vs outside of the lane is a 0.3% difference.
All of these things matter, especially when you are making claims on Stryd's accuracy. If you claim Stryd is off by 2% but you have a 1.3% uncertainty in your methods, your claim that Stryd needs calibration is unfounded!
@@Stryd Always excuses. Let’s assume this track has 400m and by accident the measurement wheel shows the same. Hm. Strange. What does matter is: I am running a race. Three colleagues with 3 different watches are staying inside 1% error. Not by accident. Me with Stryd: my error is suming up:
Now the recommendation from Stryd: Measure wheel bla bla. Sorry. It’s not true that Stryd is fine out of the box.
Check it like this: search for a few colleagues with Stryd. Set all calibration factors to 1. Then go out for a run. What should I expect? All distances after 30k stay within 1% margin? Because Stryd is so good?
I tell you what: You will be VERY surprised. We were very confused seeing the result ;). There is so much variation that you will never trust this Statement: „Accurate out of the box“ anymore 😂
So you have to calibrate it. But then it’s calibrate especially for your shoe. Use a different kind of shoe will lead to: New calibration factor. Stryd team will tell you: make sure that it is exactly the same position bla bla bla. There you can see. Variations. Lots of. I think as least the same as GPS in my case
Are you going to do any tests with calibration factor set on stryd?
Perhaps yes. At the moment I am trying to make a case that Stryd footpods, whilst good, are not perfect out of the box, as is claimed by many.
@@FilmMyRun Many others have made the claim that Stryd is perfect because Stryd is really excellent and has proven to be perfect for many runners. That being said, no technology is 100.00% perfect. We have never claimed Stryd is 100.00% perfect. Stryd is only the most accurate source of pace/distance among wearable technologies for runners, which has been proven time and time again for both outdoor running and indoors on the treadmill.
Thank you for your videos.
Please do a Stryd track calibration video.
First
Please calibrate the wheel with a 10 meter steel meter,
Check (with the wheel) if your local track is well marked.
If a IAAFT standard layout type track:
Line between lane 1/2 405.624 meters
Line between lane 2/3 413.290 meters
Line between lane 3/4 420.955 meters
Line between lane 4/5 428.621 meters
Do the 24 x Line between lane 3/4 (24 x 420.955 meters = 10103 meters) run, counter clock wise
With the foot that has Stryd over the line between lanes
Start and finish the run with the same foot (in the start marking)
@@FilmMyRun You've done a good job, in fact you saved me buying one. I'd also have had to buy a new watch because my Garmin 45 will not (apparently) work with Stryd.
good video very interesting
We have to hit the lamb post with exactly 1.21 gigawatt.
I’m glad I don’t get too technical 😂😂
I hate that I get like this with stuff. Drives me mad!
@@FilmMyRun I would just get too confused
The intesting test! Mine is 102.3
lmfao hahaha it all makes sense now ;-) I've never used Stryd before, but found this interesting none the less
I just bought a stryd footpod. Have I just wasted my money. My main goal is for daily outdoor runs using power on my very hilly route. I dont live in a flat area. Heart rate tends to lag quite a bit. Thanks
No, not at all. The Stryd is a power meter. Obviously the 'power' it measures is not your real power output. There is no way it can properly measure that. So it makes a decent estimate of your power. The Stryd's inaccuracy with pace and distance is not a big issue. You can calibrate the Stryd to a known distance or you can simply use GPS. Both are perfectly acceptable and will not affect the power numbers generated by your Stryd.
I have Stryd and honestly I do not get how you can define calibration something that happens on my fenix 5 plus automatically ...I was doing rep of 400 mt...Stryd was adding 20 mt all the time...really disappointing. I consider Stryd a joke...you cannot build up a mountain of data based on a wrong distance. It is not making sense.
Stryd is not as "perfect" as they pretend it is that's for sure (expect variations of up to 4% as per scientific studies), having said that what you could do is set calibration to 400/420=95.2 on your Fenix 5 and turn off "auto-calibration". This should help...until the "variation" kicks in and/or you change shoes. Also double-check that you are using Stryd for "pace"="always" and also "distance=always".
@@Peakabike Thank you so much , I will try :D
I think the fact that the two Stryds are so far off each other in measurement is a blow to their accuracy claims.
What accuracy claim are you referring to?
@@Stryd The lady doth protest too much, methinks
Exactly, Stryd basically deny in spite of all evidence and common sense that their devices are anything less than 100% perfect. If they had any sense of decency they would just state the ACCURACY of their device like any honest cycling power meter company does.
@@Peakabike 100% agreee.
A Stryd is an very expensive gadget. It’s not accurate at all I have the same experience. But more worse. Gps has an error. That’s true. But Stryd has more error. Calibration of this fancy thing is also very hard to do. They are posting instructions. But it’s really hard to make it as good as you need. You will see the result on longer distances. The error will sum up. The gps error will average out.
Stryd is much more accurate than a gps. There is no question about it