The battle for supremacy in pedal power measurement continues to build, as Look gets set to conduct product presentations of its Keo Power Pedal at Interbike in Las Vegas. The demos will take place at booth #22109 on Wednesday 14 September at 11:00 local time and on Thursday 15 September at 11:00.
Originally unveiled at Interbike 2010 by Look and Polar, the pedal power product, combining technology from both companies, will be available to consumers in January 2012.
The Look Kéo Power solution is billed as the first power and cadence measuring pedal for the most demanding cyclists. Combined with Polar technology for data transmission and display, the Kéo Power delivers pedalling information via direct display on the bike computer.
Each pedal senses the cyclist’s power and rate through the pedal shaft and transfers all data to transmitters (fixed on the crank arm), which send information directly to the computer using wireless technology.
According to Look and Polar, the Kéo Power permits very accurate measurement of the cyclist’s power and cadence. Each axle is equipped with 8 strain gauges permitting very accurate measurement of the axle deflection and thus the forces applied to it.
The axle electronics are designed to measure forces up to 170kg. Although, the axle itself can of course support much larger forces. The cadence is measured using a reed relay placed in the axle of the pedal.
Through the force and cadence measurement, the Kéo Power is capable of reading power. The information is then sent to the Polar transmitter, which sends it wirelessly to the meter via the WIND protocol.
