Quarq Dfour91 11r-110 Road Power Meter Gxp (rings And Bb Not Included)  

Product ID: 75534

NEXT-GEN POWER METER FOR SRAM’S VENERABLE GROUPSET

Built for SRAM’s popular RED groupset and compatible with all of SRAM’s road groupsets the SRAM RED DZero Power Meter embodies 10 years of Quarq’s technology advances and adds new features such as dual a

Every innovation in Quarq’s next-generation DZero platform is channelled into DFour: 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 DFour chassis pairs with Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chainrings. New DFour91 is designed for Shimano’s Dura-Ace R9100 chainrings. Both use Quarq’s lightweight, sturdy ExogramTM carbon crank arms. GXP and BB30 versions work with every bottom bracket shell, including BBright and BB386EVO. If you already have a power meter with an 8-bolt interface, upgrade using the DFour or DFour91 power meter spider.

THINGS TO REMEMBER
DFour is designed for Dura-Ace 9000 chainrings and compatible with Ultegra 6800 and 105 5800 chainrings.
DFour91 is designed for Dura-Ace R9100 chainrings.
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
AxCad -- no cadence magnet required
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.

SPECIFICATIONS
Speeds: n/a
Crank arm length: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm, n/a
BB Compatibility: BB30/PF30-68mm, GXP/PF GXP 68mm, n/a
Chainring Size: n/a
Bolt Circle Diameter (BCD): 110 BCD
Chainline: 45.0mm
BB Spindle Interface: 24mm, 30mm, n/a
Chainring material: n/a
Guard: No Guard
Crank arm material: Carbon
Colour (Crank arm): Black
Power Meter Type: Ant USB

Bluetooth low energy and ANT+ wireless data transfer the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.