Power Meter
#26
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You and I both! I run a Quarq RIken with a power tap G3 and take the average of both readings for better accuracy. That way I know with extreme accuracy how accurate my power meters are.
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m'kay
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If your left leg was doing 100w and your right leg 95 (i.e. 5% difference) your reported power would be 200w but actual would be 195w or 2.5% off. In other words, to say it only does half the job is a gross understatement of its usefulness. If there is a need to have really precise data, and no PM is perfect, then Stages may not be the best option, but if you only need good working/training data the left only is really not much of an issue. Of course, Stages does say the discrepancy is somewhat higher when doing things like a sprint but how often is that important.
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Just another thought on this.
If your left leg was doing 100w and your right leg 95 (i.e. 5% difference) your reported power would be 200w but actual would be 195w or 2.5% off. In other words, to say it only does half the job is a gross understatement of its usefulness. If there is a need to have really precise data, and no PM is perfect, then Stages may not be the best option, but if you only need good working/training data the left only is really not much of an issue. Of course, Stages does say the discrepancy is somewhat higher when doing things like a sprint but how often is that important.
If your left leg was doing 100w and your right leg 95 (i.e. 5% difference) your reported power would be 200w but actual would be 195w or 2.5% off. In other words, to say it only does half the job is a gross understatement of its usefulness. If there is a need to have really precise data, and no PM is perfect, then Stages may not be the best option, but if you only need good working/training data the left only is really not much of an issue. Of course, Stages does say the discrepancy is somewhat higher when doing things like a sprint but how often is that important.
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Just another thought on this.
If your left leg was doing 100w and your right leg 95 (i.e. 5% difference) your reported power would be 200w but actual would be 195w or 2.5% off. In other words, to say it only does half the job is a gross understatement of its usefulness. If there is a need to have really precise data, and no PM is perfect, then Stages may not be the best option, but if you only need good working/training data the left only is really not much of an issue. Of course, Stages does say the discrepancy is somewhat higher when doing things like a sprint but how often is that important.
If your left leg was doing 100w and your right leg 95 (i.e. 5% difference) your reported power would be 200w but actual would be 195w or 2.5% off. In other words, to say it only does half the job is a gross understatement of its usefulness. If there is a need to have really precise data, and no PM is perfect, then Stages may not be the best option, but if you only need good working/training data the left only is really not much of an issue. Of course, Stages does say the discrepancy is somewhat higher when doing things like a sprint but how often is that important.
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#37
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I have yet to see any data that indicates that a left/right imbalance is actually an issue.
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I personally use a Power2Max Type S (unnecessary upgrade from the regular one unless you're a WWeenie).
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You can look up the research on pubmed. What they've found is that the for a given rider the balance between left and right is not necessarily consistent, i.e. one day it might be 45/55 and on another it could be 55/45. Or it could change in the middle of a ride. Knowing the left/right balance isn't important if you know the sum which is what most powermeters, including the PowerTap, will give you.
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Have to agree if I can outclimb a dude on a carbon lightspeed all night on mtb with slicks loaded down with 12kg of toyring crap all night during the Fleche. I really think an aluminium bike is fine. A carbon bike is different... not nessecarily better.
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But powertap actually measures your total power, not just your right or left leg. I don't like the idea of variable leg imbalances messing with my data, especially if i'm actually paying money for the powermeter. Also, i don't think knowing your leg balance actually matters in real training. There just isn't much of a use for that type of data barring injuries.
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But powertap actually measures your total power, not just your right or left leg. I don't like the idea of variable leg imbalances messing with my data, especially if i'm actually paying money for the powermeter. Also, i don't think knowing your leg balance actually matters in real training. There just isn't much of a use for that type of data barring injuries.
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Exactly. I don't race nor do a lot of other riders. And everyone is missing the point. It may not be an absolutely accurate number, but as long as it's consistent, which their studies show it is to the same extent as others, it can be used to train.
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I would like to see a pro or TDF rider given a choice of Alu & Carbon which bike he/she would use for all stages. Maybe this is our next topic
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So you have 2 powermeters on one bike? Is that possible? Or am I missing something?
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The BEST person to ask about the iBike is the guy who owns Boyd wheels, Coach Boyd Johnson. He's done comparisons with the iBike against other PMs. Hopefully he chimes in here.
I personally use a Power2Max Type S (unnecessary upgrade from the regular one unless you're a WWeenie).
I personally use a Power2Max Type S (unnecessary upgrade from the regular one unless you're a WWeenie).
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Whatever you end up using it's not going to limit your training, you still have to do the work regardless of what numbers are on the screen