Ridley Helium Red/Black L

Ridley Helium Red/Black L 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 El. -. -. -Bike>Bike Parts>Cranksets/Chainrings>Road Bike Cranksets & Chainrings1995 More Details click ******************************************************