Given the ever evolving options in frameset aerodynamics, tire clearance, gram reduction, brake standards, and our own dogged adherence to the n+1 rule, we often find ourselves with a variety of different options in the stable. Climbing bikes, crit sleds, TT rockets, gravel adventurers–every bike serves its own unique purpose. This creates two big issues: equipping them all with power meters and explaining each acquisition to dubious significant others. The easily transferable PowerTap P1S Power Meter Pedals address the first issue. You’re on your own with the second. The P1S is similar to the more expensive P1 Pedals, but it measures power in the left pedal, only, making it one of the most economical options for power measurement. This obviously appeals to the self-sponsored racer, and that appeal is only heightened when you consider that swapping them out to another bike is exactly as easy as swapping out a regular set of pedals–all you need is a pedal wrench and a little bit of grease. In contrast to pedal-based power meters that gather data with pods dangling from the crank arms, the P1S pedals contain the entire mechanism for gathering information within the pedal body itself. Power data is determined with the use of 40 individual measurements of angular velocity per pedal rotation for precise measurements of both round and oval/non-round chainring setups. These pedals feature ANT+ and Bluetooth Smart connectivity to seamlessly pair with your head unit or other compatible device for data viewing and file tracking. The pedals come with a pair of PowerTap’s proprietary cleats. They look similar to several popular competitor’s cleats, but they aren’t. When it comes to the cleat/pedal interface, we don’t like to risk the obvious safety hazards of unpredictable or sloppy engagement, so we don’t recommend trying to force cleats into pedals that they aren’t built for. In all cases, we strongly suggest sticking with the manufacturer’s recommendation.