![]() Unlike other power meters that harvest data based on the angular velocity of the crank arm through each rotation, the Assioma uses an instantaneous angular velocity (IAV) measuring technique thanks to an on-board gyroscopic sensor. Not only does this neat little design cue ensure the Assiomas look like an ordinary pedal and not as chunky and bulky as their rivals, but it also keeps the electronics from getting damaged by falls or impacts, meaning it's easier to maintain down the line. It's a tidy-looking package - all the sensors and strain gauges are located in a housing next to the pedal body, which measures directly at each axle. In fact, they weigh just 148g per pedal, which is significantly less than the Garmin Vectors and PowerTap P2s (216g per pedal). Garmin Rally SPD and SPD SL pedal power meter reviewįavero Electronics may be a newcomer to the power-meter realm but the Italian manufacturer has taken the fight to PowerTap and Garmin by offering a lighter, cheaper and more accurate power pedal - the Assioma. With a claimed accuracy of +/- 1 per cent, they're one of the most reliable power meter systems on the market. ![]() With that in mind, look at the pedal bodies and you can see the aesthetic design follows the function and the bulk is in the spindle. Whatever you start with is irrelevant other than as a place to start. The pedal bodies are interchangeable with an upgrade kit. The big talking point here is the parts that make the Rally pedals work as a power meter live in the spindle. Next to the letters, you will find either 100 or 200 meaning either single-sided power or double-sided power, respectively. The last option is XC and that gets you a dual-sided, two-bolt, SPD-compatible pedal. An RS designation means a road pedal using an SPD-SL cleat. The range's naming structure is made up of two letters, RK, RS, or XC, followed by the number 100 or 200.Īn RK box means you've got a road pedal with a Look Keo compatible cleat. ![]() The Garmin Rally pedals are a system of three pedal bodies with either single or dual power measurement.
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