Power meters have been available to the cycling masses for many years, and never before has there been as many options for the consumer as there are today. Whether power is measured at the hub, the cranks or the pedals, output measured in watts is key to
4iiii Precision Pro
The Precision Pro dual-side power meters deliver all the benefits of 4iiii’s left-side model, including accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power-meter technology plus a specific breakdown of left and right wattage. The “Ride Ready” version comes pre-installed on a new Shimano Dura-Ace FC-9000 series crankset or you can send in your own cranks to have the 4iiii Precision Pro factory-installed.
Pioneer SGY-PM91 Series
Pioneer’s latest SGY-PM91 Series dual-leg crankarm power meter mounted to Shimano road cranksets provides 12-point analysis using dual strain gauges (one on each left/right crankarm). Pioneer differentiates from other power-meter manufacturers by measuring independent power data from both legs, and transmits this information 12 times within each pedal rotation. In addition to measuring visible raw power at 12 points in each stroke, other new insightful parameters include where power is being applied in each pedal rotation, the torque location and force angles of each pedal stroke, as well as the location and level-of-power deficiency within the pedal stroke. With this data, analyze the unique characteristics of your pedaling and quantify your performance as a “Pedaling Efficiency” value.
The Quarq DZero combines 10 years of technology advances with such new features as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets. Exogram carbon-fibre crankarms are stiff and lightweight, and the AxCad feature means no cadence magnet is required. The battery is a replaceable CR2032 that provides 200-hour battery life and can be changed without tools.
The new Shimano FC-R9100-P Dura-Ace power meter guarantees reliability as it boasts a completely sealed, crank-integrated design that is waterproof in all conditions, with the built-in battery recharged by a small magnetic adapter, so there’s no cover to open. The direct instant-response system ensures accurate data collection for stable power measurement at various stepping positions. It also features a simple reset via a switch on the transmitter. Compatible with third-party displays via Bluetooth and ANT+ technology, the FC-R9100-P is made with Hollowtech II construction, works with the Hollowglide chain and is 11-speed compatible.
The only carbon-based, direct-force measurement power solution on the market today, the Stages Power carbon meter does not compromise the functionality or the simplicity of the Stages Power meter. Measuring torque, controlling for temperature variables and considering compatibility across bottom-bracket options are just a few of the challenges faced when designing for carbon, and the Stages solution is a meter engineered to work with a wide range of cranksets, across multiple bikes and cycling disciplines. This new generation of Stages’ housing design gives the meter a 28% lower profile, with a 17% reduction in frontal area, while increasing the strength of the battery-door interface by 200%. It is compatible with SRAM GXP and BB30, FSA 386EVO and RaceFace Next SL.