Quarq DFour Power Meter Spider

$779.00

Upgrade a Quarq 8-bolt power meter (see below) or Quarq Prime Power Ready crankset with a DFour power meter to make the most of your Shimano® Dura-Ace® 9000 groupset, which embodies all the advances of the next-generation DZero platform.

 

SKU: 00.3018.173.000 Categories: ,

Description

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 spider works with Shimano®’s 11-speed Dura-Ace® 9000, Ultegra® 6800 and 105® 5800 chainrings.

$779 / €779 / £660

Features & Benefits

  • Bluetooth low energy technology and ANT+ wireless data transfer.
  • AxCad – no magnet.
  • 10K Temperature Compensation.
  • Battery – CR2032, 200-hour battery life, change without tools.
  • Power Balance.
  • OmniCal – swap chainrings without affecting accuracy.
  • 2-year warranty.
  • IPX7 waterproof rating.
  • Accuracy – within 1.5%, measuring both legs.
  • Free firmware upgrades with the Qalvin app.

Essential Details

  • Designed for Dura-Ace® 9000 chainrings. Compatible with Ultegra® 6800 and 105® 5800 chainrings.
  • Uses the 8-Bolt crank to spider interface.
  • Quarq ELSA RS Power Meter owners can upgrade to the DZero platform with a DFour Power Meter Spider.
  • Additional clearance to fit BB386EVO bottom brackets.

8-Bolt Compatibility

Power meters and cranksets on 8-bolt since release:

  • Quarq ELSA RS (Aug ’14)
  • Quarq RIKEN AL (Apr ’15)
  • Quarq Prime Power Ready Cranksets (Mar ’16)
  • SRAM RED Power Ready Cranksets (Mar ’16)
  • SRAM XX1 Power Meter (Aug ’14) (Note: Boost spiders should not be paired with 156Q crank arms)
  • SRAM RED BB386EVO standard crankset (Mar ’16)

Power meters switched to 8-bolt:

  • Quarq RIKEN R (Revision AEQ onward, except warranty/replacement – Jul ’15)
  • SRAM RED (eTap graphics – Jan ‘16)

Incompatible products:

  • Quarq ELSA R

Additional information

Bolt Circle Diameter

Shimano® 4-Arm

Compatibility

Shimano® 11-speed chainrings (except for Dura-Ace® R9100). Designed for Dura-Ace® 9000. Compatible with Ultegra® 6800 and 105® 5800.

Material

CNC Machined Aluminum Spider

Accuracy

1.5%

Wireless Technology

ANT+, Bluetooth low energy technology

Battery

CR2032, 200 hours of riding time

Weight

154g

Technology

DZero is packed with 10 years of technical innovations and 150 documented technology iterations.

The Heart Of Your Bicycle

The sole job of the crankset is to convert the effort from both legs to forward motion. It is the perfect place to measure power.

Designed To Make You Faster

Quarq’s direct force power meters measure what wins races — total power output from both legs — with 1.5% accuracy.

Built To Last

All power meters have an IPX7 waterproof rating. They feature a 2-year warranty, free firmware updates and acclaimed worldwide support.

For Past, Present & Future

The DZero road power meters work for every discipline. The chainrings are replaceable should your bike, discipline or ability change.

10K Temperature Compensation

Each power meter is programmed with over 10,000 data points to eliminate temperature effects on power measurement.

A Companion Digital Wrench

With Quarq’s free Qalvin app you can set the zero offset, check battery voltage, run diagnostics and perform firmware updates. For free.

DZero Platform

The DZero Platform

Quarq DZero Carbon Chassis
Quarq DZero Power Meter ChassisFor traditional 10- and 11-speed chainrings. Exogram carbon or forged aluminum crank arms. Hidden or non-hidden bolt spider. 130 BCD and 110 BCD. Learn more about DZero Carbon and DZero Aluminum.
Quarq DFour Chassis
Quarq DFour91 and DFour Power Meter ChassisA DZero power meter for Shimano® 11-speed drivetrains, compatible with Shimano’s 4-arm chainrings (1). Learn more about DFour91 and DFour.
SRAM RED DZero Chassis
SRAM RED DZero Power Meter ChassisCreated to work hand-in-hand with SRAM RED eTap. Exogram carbon crank arms. Hidden bolt spider. 130 BCD and 110 BCD. Learn more.
SRAM XX1 Eagle Chassis
SRAM XX1 Eagle Power MeterFor 1X MTB drivetrains. CARBON TUNED™ crank arms, DZero technology. 170 or 175mm. Conventional and Boost variants. Learn more.

Quarq DZero Power Meter SpidersDZero in spider form. Learn more about the DZero, DZero for Specialized, DFour, DFour91 and SRAM XX1 Eagle power meter spiders.
X-SYNC 2 Chainrings
X-SYNC 2 ChainringsFor the SRAM XX1 Eagle Power Meter and compatible with the previous SRAM XX1 Quarq power meter.  32-38T.  X-SYNC 2™ tooth design. Learn more.

 

User Manuals

Find all Quarq Power Meter user manuals in the Support Pages

For further assistance, please Contact Us