Built specifically for SRAM's popular RED groupset, the SRAM RED DZero Power Meter embodies 10 years of Quarq's technology advances and adds new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets.
- 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.
- Works with SRAM 11-speed drivetrains and the SRAM RED 10-speed drivetrain.
- Compatible SRAM chainrings ensure the chain derailment pin aligns with the crank arm.
- Free firmware upgrades with the Qalvin app.
Besides serious weight savings, this bottom bracket means narrow Q-factor, more ankle clearance, greater bearing durability, and stronger crank construction.
Our Hollow Carbon Construction starts in the crank arm and extends into the crank’s spider, maximizing the stiffness to weight ratio.
GXP’s gutter seal design cuts friction, durability and weight—improving both feel and performance.
OmniCal means power measurement is independent from chainring selection. You can swap chainrings without impacting accuracy. All current power meters feature OmniCal.
It’s all the best from BB30 and Press-Fit bottom brackets in one captivating package. This bottom bracket is designed for 30mm spindle cranksets. The key difference with PressFit 30 is how the bearings are fitted into the frame. Bearings are housed in nylon cups which will be pressed into the frames bottom bracket shell. PressFit 30 will feature an integrated seal, pre-assembled into the cups, to further prolong bearing life.
Quarq technology powers SRAM’s road power meters including the groundbreaking SRAM RED Quarq Power Meter. Power meters calculate power by measuring the torque (pedal force) and the angular velocity (cadence). Power = Torque x Cadence. SRAM power meters use a proprietary strain gauge arrangement and precision digital circuitry to delivery high accuracy and low power consumption for optimal battery life.
A variant of the external GXP® bottom bracket, PressFit cuts weight by up to 40 grams and eases installation by allowing you to press the bearing cups into the frame instead of threading them. It requires no change to the crank spindle length and diameter.
|Crank arm length||162.5mm, 165mm, 170mm, 172.5mm, 175mm, 177.5mm|
|BB Compatibility||BB386, GXP/PF GXP 68mm|
|Bolt Circle Diameter (BCD)||110 BCD, 130 BCD|
|BB Spindle Interface||24mm, 30mm|
|Color (Crank arm)||Black|