The Dura-Ace FC-R9200-P power meter chainset brings everything a data-driven cyclist could want. Its integrated, waterproof design brings all-weather reliability while delivering accurate information including left/right balance. A rechargeable Li-ion battery is user-friendly and Bluetooth®LE and ANT+ connectivity ensure its as easy to use as setup.

• Accurately calibrated strain gauges are integrated inside both left and right crank arms, which provides a stable measurement system through rotation from both sides for exact data
• +/-2% accuracy of strain gauge measured power
• Bluetooth and ANT+ with wireless firmware update and data acquisition system
• Easily rechargeable integrated battery with fully waterproof, reliable electric system
• Hollow outer chainring, giving vast improvements in rigidity and increased weight savings
• The hollow outer chainring has essentially removed outer chainring flex, hugely improving shift performance, making it precise even under high load
• These industry-leading HollowTech II cold forged hollow crank arms have evolved to increase rigidity, reduce weight, and improve strength
• The teeth have been developed to work only in conjunction with the 12-speed chains for improved contact, providing more efficiency and improved power transfer
• There is a wide range of chainring ratios and crank arm lengths available, enabling customisation for all riders and racing disciplines
• HollowTech II integrated bottom bracket design uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
• Bottom bracket seal design has a minimal bearing interface, giving superbly smooth rolling and increased durability

• Available Crank Lengths: 170 / 172.5 / 175 mm
• Available Chainrings: 34-50T / 36-52T / 40-54T
• Accuracy %: +/- 1.5
• Strain sensors: 24
• Active temperature Compensation: Yes
• Battery Type: Lithium ion
• Battery Life: 226 hrs
• Charging Cable: EW-EC300
• Connectivity: Bluetooth® , ANT+, Bluetooth® LE Custom
• Firmware Updates: Via Shimano E-TUBE Project
• Average Weight: 745 g (50-34T), 752g (52-36T), 774 g (54-40T)