Quarq's power meter cranks continue to be reliable, accurate and easy to use. The Dfour model accepts Shimano road chainrings and offers more data transfer and frame fit compatibility.
Measures power for both legs with /_ 1.5% accuracy
Dual Bluetooth low-energy and ANT wireless data transfer
AxCad system provides no-magnet cadence data
Free firmware updates with the QALVIN APP
Uses a CR2032 battery that can be replaced without tools
Swap chainrings without needing to recalibrate
Specifications
Bottom Bracket Included
No
Chainline/Hub Compatibility
135/142 Road Disc Hubs > 415 mm
Chainring BCD
110 Shimano Asymmetric
Color
Black
Crank Arm Length
165mm, 170mm, 172.5mm, 175mm
Defined Color
Black
Designed for ebike
No
Intended Use
Road
Number of Chainrings
Double
Pedal Spindle
9/16"
Rings
None
Spindle Interface Type
SRAM/Truvativ GXP
Tree Fort ID:
333222428275
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