Dual Leg / 12 points Analysis / Crank-arm power measurement
Utilizing dual strain gauges (one on each left/right crank arm), 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 twelve points in each stroke, Pioneer's power meter also offers other new and insightful parameters including 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.

By detecting minute changes in strain on the crank every 30˚ during pedaling, the "SGY-PM 900" measures "force" and "direction of force" in 12 locations per cycle. With this data, analyze the unique characteristics of your pedaling, and quantify your performance as a "Pedaling Efficiency" value.


38 Shimano DURA-ACE and ULTEGRA Crankset Configurations
Performance road cyclists demand specific crank arm lengths and chain ring configurations to match their physical requirements and performance goals which is why Pioneer’s dual-leg power meter is available pre-installed and precision calibrated by Pioneer, on more than 38 Shimano DURA-ACE™ 9000, 7900 and ULTEGRA™ 6800 crankset configurations.
Crank Chain Ring Arm Length in millimeters
Ultegra 6800 50 x 34 165, 170, 172.5, 175
Ultegra 6800 52 x 36 165, 170, 172.5, 175
Ultegra 6800 53 x 39 165, 170, 172.5, 175
Crank Chain Ring Arm Length in millimeters
Dura-Ace 9000 50 x 34 165, 167.5, 170, 172.5, 175, 177.5, 180
Dura-Ace 9000 52 x 36 170, 172.5, 175
Dura-Ace 9000 53 x 39 165, 167.5, 170, 172.5, 175, 177.5, 180
Dura-Ace 9000 52 x 38 170, 172.5, 175
Crank Chain Ring Arm Length in millimeters
Dura-Ace 7900 50 x 34 170, 172.5, 175
Dura-Ace 7900 53 x 39 170, 172.5, 175

 

High-accuracy measurement even under harsh conditions

All Pioneer / Shimano Power Meter cranksets can operate between -10℃ to 50℃ temperatures.
Zero-point calibration is simple and easy.With each zero point calibration, the sensors will learn the characteristics of new environment s and automatically respond to changes in temperature.

 

Specifications and design subject to modification without notice.
PIONEER is a registered trademarks of Pioneer Corporation.
DURA-ACE and ULTEGRA are trademarks of Shimano, Inc.