Incredible value and from Decathlon- known for great products at proper prices. Who has one, or has tried one? Thought please…
Ride on,
Dave.
Incredible value and from Decathlon- known for great products at proper prices. Who has one, or has tried one? Thought please…
Ride on,
Dave.
I don’t believe it has a powermeter…
Let us know the stated +/- accuracy on the device… Its not on the marketing material which probably tells you everything you need to know about its quality.
Some discussion of it on Facebook but it doesn’t sound like anyone actually has one yet.
The specs do not claim to support ERG mode and there is no claimed accuracy
No powermeter means no accuracy, no racing in hardware enforcement races.
It was checked by a user on Reddit and it does have a power meter. Which is good news. You have to remember, without wanting to go down this rabbit hole again, that there is no international standard for a measured watt. Yes, there is the mathematic calculation, whereas the power a power meter provides is certified by the geniuses in marketing departments. Check out the GP Llama’s comments on power meters and when I tested cycling gear, it was an eye-opener.
Anyhow - being the height that I am, I need to get my leg over one as I may have too long a pair of legs for the machine.
FWIW I have one, put it together in my loft about 4 days ago. Seems a nice piece of kit, definitely has a power meter, haven’t tried ERG yet. (I’ll check the max saddle height shortly when my other half gets off it!). I’ve barely used it since installation (as it’s not been raining and I’ve been outside!).
I’ve got a pair of Favero Assiomas on my road bike that I dare say I could do some power meter accuracy testing with if I get a spare hour or so. Any links to Shane or Ray’s testing methodology appreciated!
(She’s just got off, the top seat line “STOP” is at 820mm - although a quick tape measure suggests that it’s actually 850/855mm to the top of the saddle)
Ray’s stuff, but it costs money…
I think you can use Zwiftpower to analyze a dual recording for free?
That is super-useful and thanks ever so. The power comparison will be fascinating. Zwifts’snews about he bike ups the competition too.
It’s got a power meter, or it reports power? The two aren’t equivalent. Just asking.
Almost certainly does not have a power meter but rather estimates power based on resistance setting and cadence…you would be better off going for the new Zwift Ride which, c/w the Kickr Core, actually has real power metrics.
Indievelo natively supports recording a combined fit file for a trainer and a PM. You can then upload the fit file to https://dualrecording.com/ for analysis.
Hi.
Any update about power accuracy? And the bike in general?
Thanks in advance.
There is a Reddit thread on this and as I recall, the sprint power was slightly high and the comparison was with power pedals, which of course, are going to measure power changes faster and without drive chain losses
Saying that, now that the Zwift bike is out - and having ridden it - the Zwift ride is a no-brainer - if you desperately need a new set-up.
There is indeed quite a lot in that reddit thread (the one that starts with “Is 1500W enough”). I think the person who had one returned theirs by the look of it due to poor quality control. Mine seems fine in terms of manufacture - although had to make some adjustments to the compression fit on the seat post adjustment. Highly adjustable, saddle that comes with it is a literal pain in the @ss (standard cheapo bwin fare) but I’ve swapped it our for a charge spoon. Bike is very quiet in use and very smooth - there’s quite a lot of comments on the reddit thread when he compared to a single sided power pedal (sounds like the watts continue even when coasting).
At some point I will put some power meter pedals on it and check it out - but at the moment it’s just too hot in the loft and they are better placed on my road bike (I’m not expecting mega accuracy, but it definitely ERGs ok in workouts on mywhoosh “might” be an option for racing with a secondary power source - but that wasn’t really what I bought it for.)
Superb feedback and thanks ever so.
Say you don’t know how a power meter works without saying you don’t know how a power meter works.
Actually, a power meter uses the force being transmitted through the component - typically measured via a strain gauge - combined with the angular velocity as opposed to what I suggested is used above which is just applying some form of curve depending on the resistance setting on the bike - noting that the two are completely different…
And there is no how true source of an internationally agreed methodology of measuring a watt.
This is commonly misunderstood.
Strain gauges are indeed a common component of power meters, but it’s not simply a combination of torque measured at a strain guage and angular velocity from cadence. The smarts of top draw power meters these days are actually in software (well, firmware). They take lots of data points and measurements (even including temperature, position of the crank arm, etc) to ‘calculate’ the power to get it as close as possible to what is considered industry gold standard (which is actually also not fully agreed) from thousands of measurements taken over the years. They are basically an exercise in machine learning.
So power from a power meter is not by default more accurate than power calculated by any other method. A turbo trainer that is able to accurately measure resistance will be able to calculate power relatively accurately. For example I would trust a Garmin power calculation with no strain gauges over a Shimano one.