The Quarq Dzero 11R Aluminium 110BCD GXP Power Meter may be your perfect training partner. With a 1.5% +/- degree of accuracy, compatibility with most bottom brackets and integration with ANT+ and Bluetooth head units, you can gain a valuable insight and make the most of your time on the bike. With an incredible 200-hour battery life, an accuracy to 1.5% measuring between both legs and the ability to push your performance and speed to the next level, the Quarq DZero 11R Aluminium 110BCD GXP Power Meter is a great addition for any rider looking to get the most out of their time on the bike. This DZero model is forged from Quarq’s incredibly strong, lightweight and efficient forged aluminium. Its ultra-light construction keeps your legs spinning without any extra weight to push, whilst still staying rigid for greater efficiency without a loss of power. The completely revised circuitry and a new strain gauge design has been designed to give you a solid record of your performance, allowing you to dissect every measurement and understand where you need to improve. The 1.5% accuracy doesn’t come as standard on every power meter, either. In fact, a wide variety actually lose accuracy through sudden changes in temperature. For this reason, Quarq have used 10K temperature compensation that gives an unwavering record of your performance through all conditions. An IPX7 waterproof rating, an easy-to replace CR2032 battery and a 2-year free warranty assures that the DZero are built to last. Free firmware updates keep you up to date with all the latest innovations from Quarq, ensuring your power is being read to a high level of accuracy. Gone are the painstaking days of having to zero your power meter before every few rides. The automatic zeroing makes Quarq power meters so easy to integrate into your everyday riding and training that you’ll almost forget they are there! Compatibility is one huge advantage of the Quarq DZero, and thanks to ten years of innovation, Quarq have been able to incorporate every bottom bracket into the DZero.  Quarq Dzero 11R Aluminium 110BCD GXP Power Meter Features Bluetooth low energy technology and ANT+ wireless data transfer AxCad - no magnet 10K Temperature Compensation Battery - CR2032, 200-hour battery life, change without tools OmniCal - swap chainrings without affecting accuracy 2-year warranty IPX7 waterproof rating Accuracy - within 1.5%, measuring both legs Works with traditional 5-bolt chainrings from most manufacturers The DZero Power Meter Spider pairs with Quarq Prime Existing owners can upgrade to a DZero spider if the power meter uses the 8-bolt interface Free firmware upgrades with the Qalvin app This model does not work with BBright or BB386EVO bottom brackets