Stages Cycling Shimano Dura Ace 7900 Power Meter Crank - Left Arm Only

Stages Cycling Shimano Dura Ace 7900 Power Crank - Left Arm Only

For Dura-Ace 7900 riders we offer a Stages Power meter as a replacement for existing 7900 non-drive crank arms. Riders looking to add power to their existing crank need only select length, as the Stages Power meter (Dura-Ace 7900) fits all styles of 7900 crankset, including: compact and standard.

The patented Stages Power meter is primed to bring 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 MTB, ‘cross or DH 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. No matter your cycling passion — we have a Stages Power meter for you.

Technology

You'll find the Stages meter to be the lightest, smallest, most technologically advanced unit available today. The 20g unit houses an array of high technologies adapted from the rapid advancement of modern electronics.

The accelerometer based cadence measurement is possible due to the technology's development for use in smart phones. We’re especially excited about the Stages Power meter’s bilingual communication between both ANT and Bluetooth Smart protocols; the latter gives Stage 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.

** Stages Power also broadcasts via Bluetooth Smart. Bluetooth 4.0 devices can communicate with Bluetooth Smart devices as well as legacy Bluetooth versions. Devices that can communicate with Bluetooth Smart devices are known as Bluetooth Smart Ready. Clear as mud?