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Peter Salt

Bittersweet
Location
Yorkshire, UK
You'll get kicked out of our chat for that kind of filthy talk :laugh:
You're welcome to come along with Martin, Alex ;)

Unbeknown to me I had a sneaky practice on RGV yesterday just did the route as I hadn't done it before . Had a unofficial race with someone I caught up and he hopped on my wheel and we rode 3/4 of the course together picking up riders ,group was up to 7 at one time but kept changing . Anyway coming into the finish I was thinking is it rude to go for a sprint as he went for it . So full gas sprint to the end he did pip me which is my normal sprint result but good fun . Exchanged messaged at the end and had a laugh about our "race"
Sounds like a bad case of racingitis :laugh:
 

alex_cycles

Veteran
Location
Oxfordshire
I noticed yesterday that in some people's zwift videos the power and/or cadence numbers seem to dance around quite a lot (both in frequency AND amplitude).

Why would this be? Something to do with settings on Zwift itself? Trainer or Trainer setup? Power meter setup?
Or is it something to do with whether you use PC, iPad, ATV etc?

On my setup I have it set to 3s power smoothing in Zwift (as I do in real life on the road - so it made sense to me to use that).

Looking at Andy's vid from yesterday both power and cadence jump around a lot.
Martin's and mine seem to update a bit more than once a second, but the values don't swing hugely. Certainly for cadence that seems a lot more realistic. I know that power can vary wildly without smoothing.

Andy's

View: https://youtu.be/NUtVZ5NoVMo


Mine

View: https://youtu.be/gb-EOcbQaOA
 
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Peter Salt

Bittersweet
Location
Yorkshire, UK
I don't do smoothing - personally find it annoying. I want to see what the value is now and not an average of last 3s or however long it is. Same thing with graphs - I hate it when people smooth out graphs.
 

alex_cycles

Veteran
Location
Oxfordshire
I don't do smoothing - personally find it annoying. I want to see what the value is now and not an average of last 3s or however long it is. Same thing with graphs - I hate it when people smooth out graphs.

It still records the raw data as far as I know. Might be easier with a huge monitor indoors, but on a small Garmin screen outside, trying to do a TT at a steady power without any smoothing would be exceedingly difficult. :eek:
 

alex_cycles

Veteran
Location
Oxfordshire
Does anyone else get this?

My charts always look that spiky. :laugh: Here's yesterday's although I wasn't trying to stick to any given power. I put in a couple of digs on the inclines.
Screen Shot 2022-12-16 at 17.33.40.png
 
OP
OP
CXRAndy

CXRAndy

Guru
Location
Lincs
Looking at your video Alex, it looked to me your power was all over the place. One second its 5.5W/kg then 3W and less. I also noted you were quite sluggish to get the power on 23rd St reverse. You were at the back making 3.5W when B riders normally make easy 5.5-6.5W going up hill. The same happened on the longer climb your power is up then down.

Very odd, it doesn't feel like power is fluctuating whilst riding. There again, I've become more burst type power, where I will ramp power to get me into the mid pack then back right off not to fly through the front. The only thing that seems to flatten these fluctuations is using a lower even power cadence- which is fine, lowers my HR and breathing for when I need to up the effort.
 

Norry1

Legendary Member
Location
Warwick
Lovely sprint @Norry1 :becool: I make much worse sounds in similar situations :laugh:

At this pace, you'll jump right over C and straight into the Splitters team :okay:

I suspect the "easy" gains are now behind me, having gone from an FTP of 160W on Oct 10th to 232W now. It would be lovely if I could maintain that rate of improvement but unfortunately not very likely ^_^
 

alex_cycles

Veteran
Location
Oxfordshire
Looking at your video Alex, it looked to me your power was all over the place. One second its 5.5W/kg then 3W and less. I also noted you were quite sluggish to get the power on 23rd St reverse. You were at the back making 3.5W when B riders normally make easy 5.5-6.5W going up hill.

Probably got in the habit of starting at the back. I blame Titan's Grove FTS attempts. :biggrin:

The same happened on the longer climb your power is up then down.

I'm talking specifically about the raw Watts and cadence displayed in the top-left of the screen, I rarely look at the W/kg as it's too damned small, keeps changing position and is extremely hard for me to read. :laugh: Sometimes it's amusing to glance at it though.

Very odd, it doesn't feel like power is fluctuating whilst riding.
It very probably isn't. It's probably the smoothing thing. I'm assuming you don't have the 3s smoothing switched on?
 
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