Power Meters / Powermeters (SRM, Powertap, Quarq, Ergomo, Vector, Stages, power2max, P2M, 4iii, InPower, Cinch)

Are you taking TSS from your Bryton? If so have a look and see if there is somewhere to configure your FTP in there.

I bought the 910xt.

The Brytons been sold.

Stood in the store with a 510 edge in my hand, thinking I could buy a separate running watch, as I wanted the big screen. Then the sales guy pointed out the 310xt was £100 cheaper on offer, and handed me one.

My gut said 910xt.

It was right. The sceen may be small. But its of a really good quality. Shows my 4 main fields really clearly, and the solid mount and scroll buttons, make checking other suff a breeze. Did a nice run with it on Sunday. Which confirmed my chioce. I like the altometer, and thats a high end feature in a running watch.

If the power readings look good then that suggests that your FTP is set wrong.

If that 55 miles took three hours (say) then a TSS of 316 would indicate that you were over your FTP for the whole period.

FTP is set to my pre-hols 266 watts. The power average is probably OK, if 25 - 30 watts low as usual. But it has massive spikes. Which I would have though make for a big IF. Did a slow assent to the top of trollstigen (the bit we drove). Then rode up it 1 and 1/2 times. So it wasnt an easy day.

Another thing. With it being HR based. I have a stomache issue, which is stopping me hydrate. I was even also very violently sick at one point. My HR was through the roof for what I would usually consider maintainable efforts. Not sure if this effects it. I guess it should.

Avg Power:193 W (so 215w corrected I guess)
Max Power:1,595 W (I wish)
Normalized Power (NP):219w (240w sounds fair)
Intensity Factor (IF):0.822 (nope. not for that length of time. I'd have cried)
Training Stress Score (TSS):316.3 (dodgey)

This all points to me getting a proper PM I realise. But I need a new right shifter first :(