the one you don't mention that so many insiders scratch their heads and wonder why it's not the top selling power meter is the one by pioneer.

I don't think anyone has given you a direct reply. MegaExo is FSA's threaded BB for 24mm spindles. You basically just need an appropriately threaded bottom bracket (usually English, sometimes Italian). Easiest would be to stick with the megaexo and get a gossamer model (cheap too, $499 at the moment). That way, you can keep your bottom bracket as long as it's not worn out. Also possible to upgrade your crank if that's desired, you just need the appropriate BB in that case (and changing is quite easy if you have a BB tool).

hmmm... "everything you say isnt true".... not sure how to respond to that, except to politely and respectfully disagree. Please define "fairly successfully" as well regarding your racing?

My intention is to provide helpful information. If understanding the rolling resistance properties of bike tires is of no interest, then there is not reason to read further... The issue with a powertap hub is it directs the decision about using the same wheel for both racing and training, a topic which should be unrelated to the quality of the meter. Powertap has a good reputation, and is a good value buy. (Hey, that is why I bought one!)

Before making a big purchase, the issue of what wheels the rider will both race and train on needs to be investigated and intelligently answered. Many of my friends race/train on the same wheels. Many of them have no idea the difference between tires. Many race/train on the same wheel only because they bought a powertap... they are stuck. And that is my point. If you buy a powertap hub, you are stuck with that decision.

Faster tires are made of thinner rubber. Even faster tires are made of latex tubes and not butyl tubes, making them faster, but they puncture easier. Not only are they less durable for regular training, they are more expensive. These are some of the issues which this thread hadnt yet addressed, which I wanted to bring up to be helpful.

Thank you

If you're talking about latex tubes in the bolded part above, you're wrong about that.

I don't think anyone has given you a direct reply. MegaExo is FSA's threaded BB for 24mm spindles. You basically just need an appropriately threaded bottom bracket (usually English, sometimes Italian). Easiest would be to stick with the megaexo and get a gossamer model (cheap too, $499 at the moment). That way, you can keep your bottom bracket as long as it's not worn out. Also possible to upgrade your crank if that's desired, you just need the appropriate BB in that case (and changing is quite easy if you have a BB tool).

hmmm... "everything you say isnt true".... not sure how to respond to that, except to politely and respectfully disagree. Please define "fairly successfully" as well regarding your racing?

My intention is to provide helpful information. If understanding the rolling resistance properties of bike tires is of no interest, then there is not reason to read further... The issue with a powertap hub is it directs the decision about using the same wheel for both racing and training, a topic which should be unrelated to the quality of the meter. Powertap has a good reputation, and is a good value buy. (Hey, that is why I bought one!)

Before making a big purchase, the issue of what wheels the rider will both race and train on needs to be investigated and intelligently answered. Many of my friends race/train on the same wheels. Many of them have no idea the difference between tires. Many race/train on the same wheel only because they bought a powertap... they are stuck. And that is my point. If you buy a powertap hub, you are stuck with that decision.

Faster tires are made of thinner rubber. Even faster tires are made of latex tubes and not butyl tubes, making them faster, but they puncture easier. Not only are they less durable for regular training, they are more expensive. These are some of the issues which this thread hadnt yet addressed, which I wanted to bring up to be helpful.

Thank you

It's built into spider and NDS crank arm. Really only a good option if you already run Shimano cranks. You also need to use their head unit to get all the data output by cranks if I am not mistaken (such as power vectors and such).

I would like to try one, but haven't been given enough incentive yet. They need to make it easier for people to get them (employees, ambassadors, etc) because their market share is so low that nobody in any given community has one and therefore word doesn't spread. Or something like that.