Anyone have any experience with the SmartRow handle yet?

Maintenance, accessories, operation. Anything to do with making your erg work.
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JaapvanE
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Anyone have any experience with the SmartRow handle yet?

Post by JaapvanE » May 4th, 2025, 6:46 am

I was pointed to this handle: https://smartrow.fit/smartrow-power-handle/

The concept is promissing, especially as a load cell should be able to produce more accurate force curves than the PM5 can. But measuring displacement (and thus power and speed) is mire difficult. Any experience with this device and how it stacks up against our trusted PM5? Anyone have rowed with it and how the feel compares to the stock RowErg handle?

gvcormac
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Re: Anyone have any experience with the SmartRow handle yet?

Post by gvcormac » May 4th, 2025, 11:21 am

Looks interesting. Only in NL so far.

I'd be more interested in controlling apps well enough to use web and email than to get force curves.

I agree with you that measuring position might be a challenge. Maybe they have some sort of gyro/geo built in but if they do they don't seem to brag about it. And I don't know how accurate it would be. I wonder how precisely the tech from a smartphone/smartwatch would be able to guess displacement.

JaapvanE
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Re: Anyone have any experience with the SmartRow handle yet?

Post by JaapvanE » May 4th, 2025, 11:42 am

gvcormac wrote:
May 4th, 2025, 11:21 am
I'd be more interested in controlling apps well enough to use web and email than to get force curves.
There is the ErgRemote, which is more budget friendly and has more buttons.
gvcormac wrote:
May 4th, 2025, 11:21 am
I agree with you that measuring position might be a challenge. Maybe they have some sort of gyro/geo built in but if they do they don't seem to brag about it. And I don't know how accurate it would be. I wonder how precisely the tech from a smartphone/smartwatch would be able to guess displacement.
They were not the first to try this approach. Getting displacement right is tough, which made their predecessors fail. A gyro/accelerometer tells you acceleration, and thus finding speed and displacement sounds easy in theory, but getting past measurement noise is tough. Especially when it involves three axis. In essence it is the same issue the PM5 has, only from the opposite side: the PM5 knows the displacement, but getting the force is dependent on the second derivative of the displacement, which is total chaos due to measurement noise.

And drive length isn't that large. A few centimeters makes a huge difference in overall power. But having exceptional components might work. Given their price (roughly 300 euro), I'd expect better components than a smartwatch or smartphone.

Tsnor
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Re: Anyone have any experience with the SmartRow handle yet?

Post by Tsnor » May 4th, 2025, 1:07 pm

The ONE thing I'd like in a smart handle is sadly lacking. Embedded HR monitor.

Smart handle is the perfect place for a heart rate monitor. Trivial cost off-the-shelf sensor used in tons of fitness equipment, and the handle needs battery power and bluetooth regardless. Jsut standard metal grip pads and the rowers hands stay on the grips. With this you'd no longer needs a HR belt to get accurate HR measurements.

Image

Interesting point on better force curve. How would this be used?

Question, if you had this handle, and your were (correctly) 100% sure the handle's wattage and split were correct, and you rowed a 7:05 2K according to your PM5, but the smart handlebar said 6:55... which would you put in your signature and tell your friends? Likely you post whatever the PM5 says, right or wrong.

I don't really understand how the handle helps if you already have a C2 erg. C2 reported metrics are hugely consistent. It's less clear they are accurate, but not sure who cares about that. If the smart handle results are different than C2 PM5 results, then not clear what benefit you have by putting this on your non-C2 erg... you exchange one (incompatible) measurement for another (more accurate, but still incompatible) measurement.

Tsnor
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Re: Anyone have any experience with the SmartRow handle yet?

Post by Tsnor » May 4th, 2025, 1:13 pm

gvcormac wrote:
May 4th, 2025, 11:21 am
I'd be more interested in controlling apps well enough to use web and email
VOICE. Look into some of the voice control apps. Think you can do this with your current phone without new hardware.

android for example, https://support.google.com/accessibilit ... 1848?hl=en IOS has similar.

(Aside: it would kill me to do email while rowing.)
(Aside2: How exactly do you pretend to be a bot? I'm struggling)

gvcormac
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Re: Anyone have any experience with the SmartRow handle yet?

Post by gvcormac » May 4th, 2025, 3:31 pm

Tsnor wrote:
May 4th, 2025, 1:13 pm
gvcormac wrote:
May 4th, 2025, 11:21 am
I'd be more interested in controlling apps well enough to use web and email
VOICE. Look into some of the voice control apps. Think you can do this with your current phone without new hardware.

android for example, https://support.google.com/accessibilit ... 1848?hl=en IOS has similar.

(Aside: it would kill me to do email while rowing.)
(Aside2: How exactly do you pretend to be a bot? I'm struggling)
1. I BikeErg every day while I do email, read papers, etc. I'm not sure if anything would give me enough control to row while doing same, but it might be interesting to try. Or maybe SkiErg ... there you can take one hand away for a while but if you let go of the handle you need to break stride.

2. Me?

Tsnor
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Re: Anyone have any experience with the SmartRow handle yet?

Post by Tsnor » May 4th, 2025, 5:22 pm

gvcormac wrote:
May 4th, 2025, 3:31 pm
Tsnor wrote:
May 4th, 2025, 1:13 pm
gvcormac wrote:
May 4th, 2025, 11:21 am
I'd be more interested in controlling apps well enough to use web and email
VOICE. Look into some of the voice control apps. Think you can do this with your current phone without new hardware.

android for example, https://support.google.com/accessibilit ... 1848?hl=en IOS has similar.

(Aside: it would kill me to do email while rowing.)
(Aside2: How exactly do you pretend to be a bot? I'm struggling)
1. I BikeErg every day while I do email, read papers, etc. I'm not sure if anything would give me enough control to row while doing same, but it might be interesting to try. Or maybe SkiErg ... there you can take one hand away for a while but if you let go of the handle you need to break stride.

Voice should work fine for you. Free, and very well tested by the accessibility community. No need for hands.

2. Me?
sorry, bad wording. (Aside2: How exactly does a person (me) pretend to be a bot? I'm struggling) Going back to this post which died an early death. viewtopic.php?f=7&t=209739

gvcormac
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Re: Anyone have any experience with the SmartRow handle yet?

Post by gvcormac » May 4th, 2025, 7:05 pm

Tsnor wrote:
May 4th, 2025, 5:22 pm

sorry, bad wording. (Aside2: How exactly does a person (me) pretend to be a bot? I'm struggling) Going back to this post which died an early death. viewtopic.php?f=7&t=209739
I haven't seen anything here that resembles a bot. Troll, yes (one in particular), bot not bot. On the other hand, YouTube is infested with AI-generated crap. It is almost impossible to find anything new beyond your current subscriptions that isn't AI. How sad.

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c2jonw
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Re: Anyone have any experience with the SmartRow handle yet?

Post by c2jonw » May 5th, 2025, 6:26 am

A couple of concerns I have with this regarding their method of attaching their handle to the C2 chain swivel. They are using a steel (probably stainless steel) fastener that interfaces with the stainless steel swivel body. With any movement between these two parts there will be resulting wear. But the bigger issue is that by removing the U-bolt they introduce side forces to the chain in the event that you are not pulling perfectly straight on the handle, which can lead to chain failure. Early chain attachment methods on the C2 Model B did not utilize the swivel connector and there were an unacceptable number of chain failures. The swivel connector virtually eliminated this problem and unless there is something I'm not seeing in the video I would think it's use would not be advised.
73 year old grandpa living in Waterbury Center, Vermont, USA
Concept2 employee 1980-2018! and what a long, strange trip it's been......

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Ombrax
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Re: Anyone have any experience with the SmartRow handle yet?

Post by Ombrax » May 12th, 2025, 7:11 pm

c2jonw wrote:
May 5th, 2025, 6:26 am
A couple of concerns I have with this regarding their method of attaching their handle to the C2 chain swivel.
Totally agree with this.

I'm thinking that either 1) they're aware that they have an issue that will undoubtedly be a medium to long term problem for users, but haven't bothered to fix it, or 2) they're a bunch of software guys, so they haven't recognized a mechanical problem, and haven't put enough time on their design for the issue to become obvious to them. Either way, it's a bad sign about their compatibilities as a team to provide a quality product.

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