I think you will find the Concept2 more accurate than a set of power pedals. The fan setting affects the amount of air flow, thus feel, but the way power is calculated there isn't drift of power reading over time. There is drift of feel over time as dust builds up restricting the air flow at a given setting, 200 watts will still be 200 watts after several years whatever the damper setting.
However there is a study which shows Concept 2 measures approx 25 watts less than a force measuring system, but it was only about 6 rowers.
Concept 2 will certainly be more consistent than force measuring systems as temperature, air pressure etc don't affect the accuracy of the measurement but power calculated at the Concept2 fly wheel may prove to be a little different to force measuring devices.
Over the years I've used hundreds of Concept 2 rowing machines, some apallingly maintained. Different damper setting needs to be adjusted for the same resistance but I never found one which gave dodgy power numners, unlike Wattbikes which used force measurement at the chain.
IIR, C2 ergs—and this basically an erg—don't measure power; they calculate power based on flywheel deceleration. The spindown measurement and calculations based on it, although set at the factory, may drift over time (why we use drag factor, and not fan settings 1-10). I guess this measurement could be validated by throwing on some Vector pedals, and comparing them vs the C2 PM5 display
Also, from the photos: the body of this spinbike looks a bit elongated, and the seatpost and crank appear to be way too far from the flywheel and "cockpit", and not adjustable.
I'm guessing this product is targeted towards the crossfit crowd, who are concerned with calories (and maybe a few watts).
C2 makes great ergs, and satisfactory oars. It will be interesting to see if their brand recognition is enough to sell those spinbikes.
However there is a study which shows Concept 2 measures approx 25 watts less than a force measuring system, but it was only about 6 rowers.
Concept 2 will certainly be more consistent than force measuring systems as temperature, air pressure etc don't affect the accuracy of the measurement but power calculated at the Concept2 fly wheel may prove to be a little different to force measuring devices.
Over the years I've used hundreds of Concept 2 rowing machines, some apallingly maintained. Different damper setting needs to be adjusted for the same resistance but I never found one which gave dodgy power numners, unlike Wattbikes which used force measurement at the chain.
philly1x wrote:
suahoi wrote:
I assume the power meter will be the exact same as that used for their rowing machine... So, I'm not sure how the accuracy will compare against other power meters, but it will almost certainly be totally consistent... A big upgrade over Wattbikes, in that regard!IIR, C2 ergs—and this basically an erg—don't measure power; they calculate power based on flywheel deceleration. The spindown measurement and calculations based on it, although set at the factory, may drift over time (why we use drag factor, and not fan settings 1-10). I guess this measurement could be validated by throwing on some Vector pedals, and comparing them vs the C2 PM5 display
Also, from the photos: the body of this spinbike looks a bit elongated, and the seatpost and crank appear to be way too far from the flywheel and "cockpit", and not adjustable.
I'm guessing this product is targeted towards the crossfit crowd, who are concerned with calories (and maybe a few watts).
C2 makes great ergs, and satisfactory oars. It will be interesting to see if their brand recognition is enough to sell those spinbikes.