Quarq Elsa GXP - $1,995.00

Grams have been shaved, accuracy increased, and stiffness taken to a new a level. Of course, we're talking about the new Quarq Elsa GXP. Representing the shape of Quarq to come, the Elsa is packed full of the latest and greatest in SRAM crank technology, as well as carrying a few features that are nothing short of revolutionary to crank-based powermeters. For Quarq's 'next wave of powermeters,' we see a complete redesign over the Cinqo, with an emphasis placed on three key issues -- weight, accuracy, and ease of use. And starting with weight, the Elsa features SRAM's Exogram Hollow Carbon crankarms found on the latest iteration of SRAM RED. You'll also find SRAM's RED Powerglide chainrings from one model back. But, as the name implies, the cranks feature a hollow construction. However, what isn't inferred is that the hollow cross-section design extends all the way to the new spider, creating SRAM's stiffest and lightest crank ever. In fact, the complete system tips the scales around 735 grams. For some perspective, the newest RED crankset weighs around 585 grams, and the last Quarq RED Exogram powermeter weighed 830 grams. So, the Elsa is sitting in a rather respectable position. The Elsa's innovative design didn't stop at the crankarms. For a rigid crankarm attachment, the Elsa uses a newly designed, CNC-machined aluminum spider. All of the data-collecting electronics, and the system's battery, is housed in the spider. Quarq is calling this OmniCal, but you can call it liberating. OmniCal enables the powermeter system to collect data independent of the chainrings. So, you can swap out rings without affecting the accuracy of the system. And speaking of accuracy, the Elsa powermeter system operates on the powerful ANT+ wireless system with an expressed accuracy of +/- 1.5% -- an improvement over the Cinqo Saturn's +/- 2%. Even more impressive is a new feature that we've only been witness to on pedal-based powermeter systems, Power Balance. - $1,995.00