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Spartak

Powered by M&M's
Location
Bristolian
Just ridden the Jungle Loop for the first time, nice route with good graphics. Took it nice and steady whilst sipping a cider... 🤣

Ready for the Team IRL iTT tomorrow night now... 😉
 

tdcadillac

Active Member
It is not that simple. Not all trainers have a power meter. Bkool wheel-on has not (and I suspect most other wheel-on) but does some calculations based on roller speed and stuff and then outputs a watt-number to the computer, which may be more or less correct, depending on the alogithm. A real Power meter (in a trainer, pedals, crankarm, crankset) requires some sort of physical measuring device like a string gauge, an optical sensor etc. The same goes for cadence.
Speed is always calculated and will most likely be different on the computer and what is shown on the bike computer. Simulators like BKOOL, Zwift etc. calculates your speed using your poweroutput but also takes into account if you are drafting or not, road inclination, your weight, height etc. So you will probably never see the same speed and hence distance traveled. Speed outdoors is calculated from wheel-size (circumference) and number of rotations (requires speed/cadence sensor of course) or using the GPS in the bike computer.
Thanks :smile: that is good to know that power is based on algorithm and not real power meter. I have few products that looks very similar to me with different price. Not sure what is the difference ( it doesn't say much in the description ) but now I know that all of them dont have a real power meter.
https://www.bicyclesmcw.com/en/product/kinetic-road-machine--control--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/kinetic-rock-and-roll--control--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/kinetic-rock-and-roll--smart-2--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/wahoo-kickr-snap-indoor-trainer
https://www.bicyclesmcw.com/en/product/kinetic-road-machine--smart-2--blue---ant--trainer
 

mjd1988

Guru
Thanks :smile: that is good to know that power is based on algorithm and not real power meter. I have few products that looks very similar to me with different price. Not sure what is the difference ( it doesn't say much in the description ) but now I know that all of them dont have a real power meter.
https://www.bicyclesmcw.com/en/product/kinetic-road-machine--control--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/kinetic-rock-and-roll--control--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/kinetic-rock-and-roll--smart-2--blue---ant--trainer
https://www.bicyclesmcw.com/en/product/wahoo-kickr-snap-indoor-trainer
https://www.bicyclesmcw.com/en/product/kinetic-road-machine--smart-2--blue---ant--trainer

The only one I've personally used is the kickr snap, which is excellent. You can sometimes buy reconditioned units direct from kickr (probably none available at the moment though)

If you really want to bury yourself in data DCrainmaker does a fairly exhaustive description of what the different options are

https://www.dcrainmaker.com/2019/10/the-smart-trainer-recommendations-guide-winter-2019-2020.html
 

tdcadillac

Active Member
The only one I've personally used is the kickr snap, which is excellent. You can sometimes buy reconditioned units direct from kickr (probably none available at the moment though)

If you really want to bury yourself in data DCrainmaker does a fairly exhaustive description of what the different options are

https://www.dcrainmaker.com/2019/10/the-smart-trainer-recommendations-guide-winter-2019-2020.html
That is a great link, thanks for sharing. It definitely got things squared in my head :smile:
 

Marino.g

Veteran
Location
Taunton
Available on Eurosport, no idea if it’s on “normal” telly but I doubt it?
I’ve bought the GCN App race pass on offer at half price for the year and has loads of races listed to watch.
 

mjd1988

Guru
The TT tomorrow has points up for grabs for the top 30 positions so decent incentive to push.

I think people are going off at 10 second intervals so I likely will have plenty of people passing by!
 

Whorty

Gets free watts from the Atom ;)
Location
Wiltshire
The TT tomorrow has points up for grabs for the top 30 positions so decent incentive to push.

I think people are going off at 10 second intervals so I likely will have plenty of people passing by!
Did you look at the video one of the C guys put up on the IRL Facebook page? Looks really slick - you are held in the pen on a travelator until you're time to go, then it shoots you out at 32kph :eek:

When you sign up you're given a start time so the earlier you sign up the earlier your start time. I was on early so start in the first minute. I'm actually going off after my 3 main rivals in the league so should hopefully make it interesting for us as we're either chasing r being chased. They're all quite a bit stronger than me so not sure I'll be able to catch them (they push upper 200s whilst I'm lower 200s so don't think I'll have the power to pull them back).

Twisted my knee earlier lifting Rach so not sure if this will hinder me tonight - just took a painkiller so hoping will be fine by tonight.
 

IrishAl

** Full Time Pro **
Location
N.Ireland
No trainer for me so was thinking how to replicate a zwift race outside. Just wondering what my pals will think if I blast off from the meet at 500watts for a minute then sit in for the rest of the ride then sprint finish to the cafe stop😂.
I thought the traditional Zwift style social ride was to blast off at the start never to be seen again whilst the ride leader constantly berates you for flying off as the group is dessimated and spread over a kilometre up the road 😃
 
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