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<p>For focused training that yields results, the consistency and accuracy of power-based training cannot be beat. And this unit is as low-profile and lightweight as a power meter gets – 20 grams, with a minimal housing and sleek front profile. You can expect wattage readings to be accurate within 2%. ANT+ and Bluetooth Smart compatibility make it good to go with pretty much any major GPS or cycling computer on the planet. Using a compact, easy to source, coin cell battery, the battery life is over 200+ hours, and you can swap it out quickly without tools.</p><ul><li>Comes pre-mounted to Shimano's 105 5800 non-drive crank arm</li><li>Shimano 5800 non-drive crank can pair with both compact and standard ring setups. Be sure to select the correct length</li><li>Compatible with all Shimano Hollowtech II road drivetrains</li><li>2016 model features a 28% lower profile and a 17% reduction in frontal area</li><li>Fully sealed unit with IPX 7 waterproofing</li><li>Power is measured in kilograms via strain gages and mathematically converted to Watts</li><li>Active temperature compensation allows accurate readings regardless of weather</li><li>Accelerometer-based cadence readings keep your bike free of wires, magnets, zip-ties and other hardware</li><li>Specifications: accuracy: ± 2%, power range (Watts): 0 to 2500, cadence range (rpm): 20-220</li><li>Wireless firmware upgrades keep the unit future-proof</li><li>ANT+ and Bluetooth Smart compatibility</li><li>Software compatibility: Training Peaks, Strava, Garmin Training Center and others</li><li>CR2032 battery lasts 200+ hours and is user-replaceable without tools</li><li>Fits most bike frames, check Stages fit guide for details</li></ul>

Stages Power Meter - Shimano 105 5800 (Gen 2)

170mm

172.5mm

175mm

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Stages Power Meter - Shimano 105 5800 (Gen 2)

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