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| DESCRIPTION |
|---|
Every innovation in Quarq’s next-generation DZero platform is channeled into the Shimano®-compatible DFour power meter. Designed for Shimano®’s lightweight, ergonomic Dura-Ace® groupset, DFour is Quarq’s most advanced Shimano®-compatible power meter ever. DFour embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.
The DFour power meter works with Shimano®’s 11-speed Dura-Ace® 9000, Ultegra® 6800 and 105® 5800 chainrings.
| 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.
| Specification | |
|---|---|
|
Material |
CNC Machined Aluminum Spider, Exogram™ Carbon Crank Arms |
|
Accuracy |
1.5% |
|
Bolt Circle Diameter |
110 Asymmetric BCD |
|
Arm Lengths |
162.5mm / 165mm / 170mm / 172.5mm / 175mm / 177.5mm |
|
Q-Factor |
145mm |
|
Bottom Bracket |
GXP, Press Fit GXP, BB30, Press Fit 30, BBright, BB386EVO, BB30A, PF30A |
|
Wireless Technology |
ANT+, Bluetooth low energy technology |
|
Battery |
CR2032, 200 hours of riding time |
|
Weight |
588g |
|
Head Unit |
ANT+™ and Bluetooth® low energy technology compatible head units (available separately) |
|
Compatibility |
Shimano® 11-speed chainrings (except for R9100). Designed for Dura-Ace® 9000. Compatible with Ultegra® 6800 and 105® 5800 |
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