Wahoo Fitness' BlueSC cycling sensor is well and good for iPhone owners that always have fair weather and friendly roads to ride. For everyone else, there's the company's just-unveiled KICKR Power Trainer, a bike training system that uses a Bluetooth 4.0 link with Apple's device (or an ANT+ bike computer) to come as close as possible to the real thing. The KICKR can change resistance as soon as third-party iOS apps like Kinomap Trainer and TrainerRoad give the word, either arbitrarily for a routine or to replicate that on-asphalt feel at up to a 15 percent hill grade. Wahoo claims the super flywheel and wheel-off design improve the sensation of the virtual road and keep the measurements for both power and speed accurate over the long haul. If there's anything holding back indoor athletes, it's the launch. The KICKR will only land in US basements and living rooms come November, and while we haven't been quoted a price, we'd wager that it's much more likely to fall in line with the cost of a regular bike trainer than a sensor like the BlueSC.