Camera damage in handlebar-mounted phones?

[Stefan Mikes]

How do I get rid of that green GPS staus tab blocking my bottom 2 (clock and battery) data fields? I think it stayed there during yesterday's test ride.

It will disappear as soon as you press the Start button.

Please detect HRM from the ACE device. Disconnect the Specialized App connection (forget sensor there). Bluetooth usually can serve one channel only.

 

[Jeremy McCreary]

It will disappear as soon as you press the Start button.

Thanks! Correct.

Please detect HRM from the ACE device. Disconnect the Specialized App connection (forget sensor there). Bluetooth usually can serve one channel only.

My cheap HRM may be at fault here. Connections to the Specialized app were getting intermittent pre-ACE, even with a new battery and cleaned electrodes. The Wahoo app pairs with it (after unpairing with the Specialized app) but can't hold a steady connection.

Guess it's time for a new HRM. Any advantage to the Wahoo HRM?

 

[DaveMatthews]

Guess it's time for a new HRM. Any advantage to the Wahoo HRM?

It's a little big for an implant...

 

[Stefan Mikes]

Morning, Jeremy!

I think I know how you can determine your true FTP! As you know, Wahoo app synchronizes with ELEMNT post ride. Please watch your completed ride in the App carefully. There is a Power Curve chart. Just have a look at your leg power after 1 hour: that is what you can use as your FTP. It is the most depressing in my case as my bad legs can produce just 60-70 W!

Sometimes, the Wahoo Cloud experiences a hiccup. In such case, you'd get your ride synchronised only after several hours (it has happened to me twice). Eventually, all will be sorted (the older app/device didn't depend on the Wahoo Cloud).

Guess it's time for a new HRM. Any advantage to the Wahoo HRM?

I have used a Polar OH1+. It is one of very few reliable HRMs that takes a form of a wristwatch and provides the data online (ANT+). However, I haven't used it with the ACE as I don't need an HRM. I can test it for you today (I meet Tommy on a group ride and he's wearing my Polar). Now, I know nothing about the Wahoo HRM.

 

[Jeremy McCreary]

I think I know how you can determine your true FTP! As you know, Wahoo app synchronizes with ELEMNT post ride. Please watch your completed ride in the App carefully. There is a Power Curve chart. Just have a look at your leg power after 1 hour: that is what you can use as your FTP. It is the most depressing in my case as my bad legs can produce just 60-70 W!

Thanks! It'll be interesting to see how that FTP estimate compares with the 2x8-minute test result of 185W I'm using now. Given the great variation in my rider power over a typical ride, and the near-zero chance that I'd ride an hour without stopping, hard to see a credible estimate coming from your method.

What's the evidence for it? The 2x8-minute FTP test can't give more than ballpark estimates but some online coaches find uses for it.

CTS Field Test: Why Two 8-Minute Efforts Are Better Than A 20-Minute or 60-Minute Time Trial? - CTS

Some athletes and coaches ask me about the rationale behind the two 8-minute efforts that make up the CTS Field Test. My field test is unique in its brevity; it’s not a 60-minute or even a 20-minute time trial because I’ve found that I don’t need to put athletes through such an effort to gather...

trainright.com

Realistically, it's the best of the shortcut tests that I can actually perform outdoors from home.

I have used a Polar OH1+. It is one of very few reliable HRMs that takes a form of a wristwatch and provides the data online (ANT+). However, I haven't used it with the ACE as I don't need an HRM. I can test it for you today (I meet Tommy on a group ride and he's wearing my Polar). Now, I know nothing about the Wahoo HRM.

Sticking with a chest strap, so dithering between the Polar H10 and the Wahoo Trackr.

Similar cost. Both can hold 2 or more Bluetooth connections at once. Cyclingnews and similar online reviews give both high marks, but both get spotty Amazon reviews — especially on reliability and longevity.

 

[Stefan Mikes]

I know very little about the cycling performance. Just looked at the result of my friend Marek S (age 54) who works hard on a cycling trainer under the supervision of a coach. His latest 1 h 18 min indoor ride gave the average power of 172 W. His average power on a real group ride he lead gave his average power of only 130 W. I think 185 W is a lot...

I respect your choice of a chest strap HRM. Just want to tell you my friend Tommy used my Polar OH1+ on both Garmin 540 and Wahoo Roam 2 yesterday on two separate rides and it worked nicely. The OH1+ was also detected by my Wahoo ACE as an ANT+ device.

 

[Jeremy McCreary]

I think 185 W is a lot...

I also think it sounds high, but that's 90% of the better of the 8-minute averages from the SL's built-in power meter. At my weight, that comes out to a semi-plausible 2.1W/kg.

@mschwett , who's had a lot of power meter experience, once said that his Specialized built-in power meters tended to run a little high. I think he said by 5-10%.

Taking the more pessimistic 10%, that'd drop my 2x8-minute FTP to a more plausible 168 W or 1.9 W/kg.

 

[Stefan Mikes]

Jeremy, I'm still thinking... Wahoo doesn't by default include zeroes in the stats, and the Auto-Pause is reliable. If your rides extend past one hour net, the Power Curve should give your 1-hour power (FTP). If that figure is lower than you thought, you might still accept is as your FTP.

The reason I think so is I looked at the performance of strong riders I know well. Jacek rode as a "horse" on a group ride yesterday, and his power was estimated to just 158 W... I wonder if you could ride gravel for at least 1 hour (net) at an average speed (net) of 15 mph unassisted?

 

[Jeremy McCreary]

I wonder if you could ride gravel for at least 1 hour (net) at an average speed (net) of 15 mph unassisted?

Absolutely not. But none of the FTP methodologies you mentioned strikes me as more reliable than a recognized FTP test that I performed as directed with my SL's power meter.

You should read up on the metabolic meaning of FTP and the nuances of measuring it. None of the many sources I read would measure it as your're recommending.

 

[stompandgo]

Thanks! Correct.


My cheap HRM may be at fault here. Connections to the Specialized app were getting intermittent pre-ACE, even with a new battery and cleaned electrodes. The Wahoo app pairs with it (after unpairing with the Specialized app) but can't hold a steady connection.

Guess it's time for a new HRM. Any advantage to the Wahoo HRM?

I've had both Garmin and a Wahoo Tickr chest strap HRM's. All the Garmins died eventually. To be fair, they were used year round for training and racing by someone who sweats profusely. The Tickr has been working just fine since I bought it about 10 years ago. It's been through about a dozen batteries. It transmits both BTLE and ANT+. The chest strap isn't as good as the Garmin strap, so when that died, I replaced it with a Garmin strap. It's been fine ever since. I highly recommend it.

 

[Jeremy McCreary]

I've had both Garmin and a Wahoo Tickr chest strap HRM's. All the Garmins died eventually. To be fair, they were used year round for training and racing by someone who sweats profusely. The Tickr has been working just fine since I bought it about 10 years ago. It's been through about a dozen batteries. It transmits both BTLE and ANT+. The chest strap isn't as good as the Garmin strap, so when that died, I replaced it with a Garmin strap. It's been fine ever since. I highly recommend it.

Very helpful! Any thoughts on my other contender, the Polar H10?

 

[stompandgo]

Polar has been in the HRM business longer than both of them, as far as I know. I don't like wrist sensors at all.