Quark DZero Power Meter Spider

The spider of the Quarq power meter houses the complete power measurement technology and can be screwed onto compatible crank arms. This version is only compatible with Specialized S-Works Carbon cranks from 2013–2018 that have a replaceable spider and are fitted with a locking bolt.

The newly developed Quarq DZero power meter now features Bluetooth Low Energy (BLE) technology in addition to the ANT+ wireless standard, improved measurement technology within the spider, an optimised design and new Qalvin software. Thanks to the carbon spider, the DZero crankset weighs just around 550 grams without chainrings.

Ideal for perfectly tailoring the power measurement system to your needs. The carbon crank arms with the Quarq DZero power meter can be fitted with standard chainrings; the 110 mm bolt circle allows for a minimum chainring size of 34 teeth. The new version with a carbon spider is significantly lighter.

Quarq DZero Power Meter:

The SRAM Red DZero Quarq power meter crankset is compatible with all 11-speed and 10-speed road bike groupsets. This system operates independently of chainring sizes, as it measures only the force applied by the rider. The Quarq power measurement system is one of the lightest wireless power meters, offering easy installation and straightforward battery replacement. Thanks to its compatibility with Bluetooth and ANT+ wireless technology, the crankset can be synchronised with a wide range of display devices. The Quarq DZero Powermeter, featuring 10 strain gauges, has an accuracy of ±1 per cent. The Quarq DZERO power meter features SRAM’s Power Balance and OmniCal technologies. The integrated electronics minimise interference and signal overlap, reduce exposure to wind and weather, and guarantee unrivalled durability and reliability.

Quarq Technology:

The Quarq Power Meter performance measurement system consists of the CinQo-Saturn ring and the Exogram crankset. Here, the CinQo-Saturn, equipped with state-of-the-art measurement technology, replaces the standard 5-arm spider of the crankset. The patented measurement technology is integrated into the five arms. This is connected by the Ring of Saturn to enable even more accurate measurement of power data.

Quarq measurement technology:

The Quarq power meter measures power by combining torque, pedal force, angular velocity and cadence, using the strain gauge technology also employed in other power meters. The pedal force applied by the cyclist causes the entire crank to bend slightly for a brief moment. This slight deformation is transmitted to the strain gauges mounted in the crank arm, which can thus measure the deformation and determine the torque. The Quarq CinQo-Saturn uses 20 strain gauges on 10 strain gauge strips in an arrangement patented by Quarq. Data transmission -

Quarq Wireless:

Data transmission is carried out using Bluetooth and ANT+ Sport technology. This wireless data transmission technology is particularly energy-efficient and therefore perfectly suited for use in mobile devices. This makes the Quarq power meter compatible with many receiving devices, e.g. Garmin Edge, Cat Eye Stealth 50, O-Synce Marco X. Power supply: Unlike all other power meter systems, Quarq uses a standard CR2450 battery, which can be replaced by the user without tools. The battery cover is designed similarly to a contact lens case and keeps the battery securely and dry in place. The battery life is approximately 400 hours of continuous use.

Quarq DZERO Power Meter Crank Arm Technology:

• Application: Road racing
• Bluetooth and ANT+ wireless technology
• Quarq Powermeter measurement system
• Battery indicator
• Carbon crankset
• Q-factor 145 mm
• Bolt circle 110 mm
• Compatibility: Campagnolo, SRAM and Shimano 10- and 11-speed
• Weight: Spider 122
• Supplied without crank arms

Included in delivery: QUARQ DZERO power meter spider, chainring bolts

Herstellerinformation: Quarq, 3100 1st Ave, 57783 Spearfish, South Dakota, United States, https://sram.com/quarq | EU contact: Sram Europe Sales and Services B.V., Paasbosweg 16, 3862 ZS Nijkerk, Netherlands, https://sram.com