Quarq DFour91 Carbon Power Meter Chassis Crank - BB30

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Description of Quarq DFour91 Carbon Power Meter Chassis Crank - BB30

Quarq has extended its DZero power meter platform, adding a chassis for Shimano®’s Dura-Ace® R9100 chainrings.

The power meters are built on Quarq’s DZero platform. They embody 10 years of advances in power meter technology, plus features such as dual Bluetooth low energy and ANT+ wireless data transfer, Quarq’s latest measurement circuit, and the Qalvin BLE app. Riders also get AxCad accelerometer cadence, the easy-to-replace CR2032 battery and an IPX7 waterproof rating.

Features of Quarq DFour91 Powermeter for Dura Ace R9100

  • Designed for Dura-Ace® R9100 chainrings. (Ultegra® R8000 chainrings have not been tested yet.)
  • Must be paired with a compatible SRAM bottom bracket.
  • 8-bolt power meter owners can upgrade using the DFour91 Power Meter Spider.
  • Accuracy: 1.5%
  • Wireless Technology: Dual Bluetooth Low Energy and ANT+
  • Battery: CR2032, 200 hours of riding time
  • Weight: 594g (172.5mm, GXP, chassis only)

Qalvin BLE with Bluetooth®

For iOS and Android. With any phone you can set zero offset, check battery, run diagnostics and update firmware. Free.

Exogram™

The Hollow Carbon Construction starts in the crank arm and extends into the crank’s spider, maximizing the stiffness to weight ratio.
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Fact Sheet of Quarq DFour91 Carbon Power Meter Chassis Crank - BB30

Product Name: Quarq DFour91 Carbon Power Meter Chassis Crank - BB30
Manufacturer: Quarq
Item Code: QRQ334616
Year: 2017
Manufacturer item code: 165mm: 00.3018.190.165
170mm: 00.3018.190.170
172,5mm: 00.3018.190.172
175mm: 00.3018.190.175
Material: crank arms: Exogram Hollow Carbon
spider: CNC machined aluminium
Weight: approx. 594 gram (172.5 mm, GXP, chassis only manufacturer information)
Included in delivery: without bottom bracket cups and chainrings
Crank length: 165 mm | 170 mm | 172,5 mm | 175 mm
Fitting for derailleur: 10/11-speed shifting systems
Axle profile: BB30, integrated BB axle
Recommended Bottom Bracket: BB30, Press Fit 30, BBright, BB386EVO, BB30A, PF30A
Bolt Circle: 110 mm, asymmetric, 4 arm
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Quarq DFour91 Carbon Power Meter Chassis Crank - BB30
Delivery approx. till Feb. 04th 2018Crank arm length: 165mm
in stock, delivery time 1-3 daysCrank arm length: 170mm
in stock, delivery time 1-3 daysCrank arm length: 172.5mm
in stock, delivery time 1-3 daysCrank arm length: 175mm
  • Description
  • Fact Sheet
  • Availability**
  • Ratings (1)

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Customer Reviews
pay attention of smaller chainring (dura ace 9000 instead of 9100)
powermeter works very good as usual.

one important thing: smaller chainring must be dura ace 9000 series, not 9100 as expected.

only bigger chainring obiously must be dura ace 9100 seriers.

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