Quarq: DZERO INNOVATION FOR SHIMANO BIKESEvery 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 REMEMBERDFour 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 BENEFITSBluetooth low energy technology and ANT+ wireless data transferAxCad -- no cadence magnet required10K Temperature CompensationBattery -- CR2032, 200-hour battery life, change without toolsOmniCal -- swap chainrings without affecting accuracy2-year warrantyIPX7 waterproof ratingAccuracy -- within 1.5%, measuring both legs.SPECIFICATIONSSpeeds: n/aCrank arm length: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm, n/aBB Compatibility: BB30/PF30-68mm, GXP/PF GXP 68mm, n/aChainring Size: n/aBolt Circle Diameter (BCD): 110 BCDChainline: 45.0mmBB Spindle Interface: 24mm, 30mm, n/aChainring material: n/aGuard: No GuardCrank arm material: CarbonColour (Crank arm): BlackPower Meter Type: Ant USB

Quarq: DZERO INNOVATION FOR SHIMANO BIKESEvery 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 REMEMBERDFour 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 BENEFITSBluetooth low energy technology and ANT+ wireless data transferAxCad -- no cadence magnet required10K Temperature CompensationBattery -- CR2032, 200-hour battery life, change without toolsOmniCal -- swap chainrings without affecting accuracy2-year warrantyIPX7 waterproof ratingAccuracy -- within 1.5%, measuring both legs.SPECIFICATIONSSpeeds: n/aCrank arm length: 162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm, n/aBB Compatibility: BB30/PF30-68mm, GXP/PF GXP 68mm, n/aChainring Size: n/aBolt Circle Diameter (BCD): 110 BCDChainline: 45.0mmBB Spindle Interface: 24mm, 30mm, n/aChainring material: n/aGuard: No GuardCrank arm material: CarbonColour (Crank arm): BlackPower Meter Type: Ant USB

QUARQ POWERMETER SPIDER ASSEMBLY FOR SPECIALIZED

QUARQ POWERMETER SPIDER ASSEMBLY FOR SPECIALIZED

Quarq: Replacement aluminum battery cover for ELSA, RIKEN, RED 22 and RED power meters.

Quarq: Quarq Battery Cover & Colored Decals (Black, Red, Blue, Orange, Green & Yellow)- compatible with any Quarq Power meters produced after January 8, 2015 (revision ADX)

QUARQ SPARE - ROAD SPINDLE SPACER KIT, BB30 (CONTAINS DRIVE SIDE SPACER 13, NON DRIVE SPACER 4.84, PRELOAD ADJUSTER RINGS AND SCREW)

QUARQ SPARE - MTB SPINDER SPACER KIT, BB30 (CONTAINS DRIVE SIDE SPACER 15.46, OUTER AND INNER ADJUSTER RINGS, AND SCREW)