SRAM’s Quarq power crankset is compatible with all of SRAM’s road groupsets, and the cranks feature SRAM’s integrated carbon crank arm and SRAM’s proven RED chainrings. The Quarq is the lightweight leader for wireless power devices and installation and battery change-outs are simple, plus ANT+ Wireless compatibility makes gives it the flexibility to sync with nearly any display unit. Specs

• Arm Material: Unidirectional Carbon
• Chainring Material: SRAM Red PG Chainrings with Anodized Coating, Alloy Chainring Bolts
• Weight: 766g (w/o BB)
• Arm Lengths: 172.5mm
• Available Ratios: 50/34T
• Wireless Technology: Latest Industry Standard, ANT+ Wireless Protocol
• Bottom bracket: GPX (not included)