Quarq Dfour91 11R-110 Road Power Meter GXP

Description

Quarq: DZERO INNOVATION FOR SHIMANO BIKES Every innovation in Quarqs next-generation Zero platform is channelled into DuFour: 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth low energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the new Qalvin BLE app. The DuFour chassis pairs with Shimanos 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chain rings. New DFour91 is designed for Shimanos Dura-Ace R9100 chain rings. Both use Quarqs lightweight, sturdy Exogram carbon crank arms. GXP and BB30 versions work with every bottom bracket shell, including Bright and BB386EVO. If you already have a power meter with an 8-bolt interface, upgrade using the DuFour or DFour91 power meter spider. THINGS TO REMEMBERD Four is designed for Dura-Ace 9000 chain rings and compatible with Ultegra 6800 and 105 5800 chainrings.DFour91 is designed for Dura-Ace R9100 chain rings. Must be paired with a compatible SRAM bottom bracket.8-bolt power meter owners can upgrade using a power meter spider. FEATURES AND BENEFITS Bluetooth low energy technology and ANT+ wireless data transfer Axe Cad -- no cadence magnet required10K Temperature Compensation Battery -- CR2032, 200-hour battery life, change without tools Omni Cal -- swap chain rings without affecting accuracy2-year warrantyIPX7 waterproof rating Accuracy -- within 1.5%, measuring both legs. SPECIFICATIONS Speeds: n/crank arm length: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm, n/abbey Compatibility: BB30/PF30-68mm, GXP/PF GXP 68mm, n/chaining Size: n/bolt Circle Diameter (BCD): 110 BCD Chain line: 45.0mmBB Spindle Interface: 24mm, 30mm, n/chaining material: n/a Guard: No Guard Crank arm material: Carbon Colour (Crank arm): Black Power Meter Type: Ant USB