2022 stages power l shimano ultegra r8100 power meter in black

The Stages Power meter is the singular product that has helped deliver power measurement and training to the masses. Stages Power has an impressive range of adaptation over the industry's aluminum crank models. This range puts power meters within the reach of every performance minded rider, from road, to triathlon, to mountain bike and track.The Shimano Ultegra R8100 L left hand Power crank is a single-leg power system that delivers left hand power data for those looking for power metrics to enhance their training. The single-sided Power Meter comes with Shimano's Ultegra R8100 left hand crank arm for strength, reliability and exceptional transfer of your power onto the road and can be added to your existing Ultegra crankset to offer market leading accuracy of ± 1.5% so you can be sure of realistic data readings.The new 3rd generation Stages Systems have been further refined with improvements in the hardware and software to bring a step change in accuracy, reliability and precision. Improved radio transmission, Bluetooth and ANT+ has resulted in close to a 6-fold improvement in signal strength while an upgraded acceleraometer with the inclusion of a gyroscope has yielded faster sampling and a future method of cadence-force profile upgrading for further refined data and improved precision. A keydevelopment in strain guage resolution has resulted in accuracy improvements with measurements now just ± 1.5% (vs the old 2%).Active temperature compensation and IPX7 waterproofing mean that whatever the conditions, you will have reliable data from cadences between 20 and 220rpm and to powers of upto 2500 watts.For those who have experienced power spiking in previous models, Stages have introduced a Hall Effect Sensor - the ability to use a magnet for Cadence detection. This HES is available in all new models . In addition to the major changes, Stages have also simplified their firmware architecture to help eliminate bugs in firmware and a new NFC - 'Touch-to-Pair' feature is imminent that will make pairing with Stages' Dash Head Unit simpler. The introduction of an LED indicator makes it easier to see battery condition without the need for accessing the Stages Power app or a head unit.The patented Stages Power meter brings power-based training to all disciplines of performance cycling. With advanced technology and simple elegant design, the Stages Power meter is perfect for any cyclist whether looking for their first power meter or a savvy power-training expert wanting to add power measurement to a second bike. Regardless of what piqued your interest in power measurement, you’ll find the Stages Power meter to be the lightest, smallest, most technologically advanced unit available today.The new Stages Power meters weigh just 20g (plus the crank arm weight) making it the lightest power meter available. In addition Stages Power meters, unlike most systems, are 'bilingual' in terms of their communication and use both ANT+ and Bluetooth Smart protocols; the latter gives the ability to ‘future proof’ this power meter with the ability to update its firmware over the air using an iPhone 4S or iPad 3 (or later) devices, while also keeping its housing impenetrably sealed to the elements.Features:Tool free battery replacementActive temperature compensationAccelerometer based cadence measurementWireless firmware upgradesPower Meter Option: Power meter (includes left arm), complete crankLength: 165mm, 170mm, 172.5mm, 175mm