Quarq power meters use their patented direct-force technology to precisely measure your physical performance throughout your ride. Their meter is located in the crankset, the heart of the bicycle. Because it gathers data from both legs, and it's located at the precise point where muscle energy is converted to forward movement, the power meter spider is the most accurate place to gather power data.
Quarq Power Meter Interfaces Quarq power meters use two different crank arm interfaces that are not cross-compatible. The 3-bolt interface is the standard SRAM interface that does not have an integrated spider. The 8-bolt interface was introduced in the Quarq power meter designs in August 2014. It aids manufacturing and serviceability. More importantly, it delivers stable and consistent zero offsets when power meter spiders are swapped between crank arms.
In addition, the 10K temperature compensation feature eliminates weather as a variable. Quarq's technology gives you the data in real-time and a solid record of your performance for review later on. Quarq power meters offer easy, verified zeroing and the Qalvin app allows you to set the zero offset, check batteries and run diagnostics. Power Balance™ captures left and right drive strokes. OmniCal™ gives you a choice of chainrings with no compromise on accuracy. Both cranks and spider made from aluminium with the spider unit machined in-house from raw blocks of high-strength aluminium. Also, they’re manufactured to excruciating standards in a factory with ISO9001 Quality Management System certification.
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This item is available for International delivery. Read more.
UK orders are sent using Royal Mail Tracked 48, Royal Mail Recorded or Royal Mail letter post for small, light orders and Parcelforce for heavier, bulky orders. Please allow approx 2-3 days for delivery after the order has been despatched. Large and heavy items, e.g turbo trainers and work stands, will be sent by Parcelforce (UK Mainland only). Overseas orders are sent using Royal Mail International Signed For service and Royal Mail Airsure service (where permitting). Heavier items e.g. bicycles are sent using Parcelforce Worldwide. Delivery times will vary depending on destination, customs clearance, local postal service etc. Please allow up to 14 working days for delivery. Postage costs include Insurance for the value of the order. Bicycles sent within the UK are sent by Parcelforce 48 Hour Service.