Quarq Elsa GXP
- Item: QRQ0009 Actual Weight:"Actual Weight" means we weighed this item ourselves. 739 g
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. This means that the Elsa is capable of capturing individual readings for the right and left drive strokes. This means you can measure the your balance of power and adjust your training accordingly.
Choosing the Elsa also provides you with several advantages over other systems. Our favorite has to be its ease of use. Along these lines, Quarq has remedied a common frustration to powermeters, setup. Now, the Elsa's ANT+ ID is clearly visible and there's an LED indicator in order to make the setup a simplified affair. Another game-changing perk is the ability to change the system battery yourself. Unlike SRM Powermeter systems that require you to mail in your crankset for battery swap-outs, the Elsa features a tool-less user replaceable CR2032 cell battery. And don't worry, with a predicted 300 hours of ride time per battery, you won't have to be changing it too often. This means more time in the saddle and no need for backup cranksets.
The Quarq Elsa GXP is available in the color Black and in both a 50/34 and 53/39 tooth chainring configuration. Also, the crankarms are available in 170, 172.5, and 175mm lengths for both the compact and standard options. Please note that this version of the Elsa is only compatible with SRAM GXP bottom brackets, which are not included with the powermeter. Also, Quarq states that the Elsa is officially compatible with SRAM's RED, Force, Rival, and Apex front derailleurs. For CPU pairings, the Elsa is compatible with any ANT+ equipped head unit.