The INPEAK Shimano 105 R7100 Powercrank - Single is a single-sided power meter integrated into a Shimano 105 FC-R7100 crank that delivers accurate power data, reliable wireless connectivity, and long battery life in a durable, lightweight design. It measures power, cadence, and advanced cycling metrics using ANT+ and Bluetooth, giving you consistent data across devices. The system uses automatic temperature compensation to maintain accuracy from -5°C to +50°C, so readings stay stable in changing conditions. Its sealed, impact-resistant housing and long CR2032 battery life support consistent use across road, gravel, and MTB riding.Key Features and Benefits:Single-sided power meter integration: The power meter is built directly into the Shimano 105 FC-R7100 crank arm, which keeps the system compact and easy to install. This reduces setup time and avoids additional components, resulting in a clean drivetrain and reliable data capture without added complexity±2% measurement accuracy: The system delivers power data within a tight accuracy range, ensuring your training data remains consistent and dependable. This allows you to track performance changes with confidence and make informed training adjustmentsANT+ and Bluetooth connectivity: Dual transmission protocols allow the power meter to connect with a wide range of bike computers, apps, and smart trainers. This ensures stable data transfer and full compatibility with popular training platformsAutomatic temperature compensation (ATC): The built-in ATC system adjusts measurements in real time based on temperature changes between -5°C and +50°C. This prevents data drift and ensures consistent readings across different weather conditionsAdvanced cycling dynamics (TWiN2): The system provides metrics such as torque effectiveness, pedal smoothness, and left/right balance. This gives deeper insight into pedalling efficiency and helps refine technique for improved performanceDurable IP67-rated construction: The sealed casing protects against water and dust ingress while resisting impacts. This ensures reliable operation in wet weather and harsh riding environmentsLong CR2032 battery life: The system runs for up to 200 hours on a single battery, with extended sleep and ship modes to preserve power. This reduces maintenance frequency and keeps the power meter ready for regular useLightweight 10g sensor design: The compact sensor adds minimal weight to the crank, maintaining the bike's original balance and performance characteristics while still delivering full power measurement capabilityAccurate and consistent power data supports structured training and performance tracking over time. The ±2% accuracy, individual calibration, and automatic temperature compensation ensure readings remain stable in varying conditions. Advanced cycling metrics provide insight into pedalling efficiency, while dual connectivity ensures data is always accessible across devices. The durable construction and long battery life reduce interruptions, allowing you to focus on maintaining consistent training output and measurable progress.Consistent data, simple integration, and reliable performance make this a practical upgrade for structured training. It supports clear performance tracking without adding complexity to your setup, making it easier to stay focused on improving output over time.Specification:Measurement precision: ± 2% Power measurement range: 20-2000 W Cadence range: 20-200 rpm Weight: 10g (INPEAK device) Case tightness: IP67 Manual zero-offset calibration: Yes Temperature compensation: Yes Gyroscope + Accelerometer: Yes Torque Effectiveness: Yes Pedal Smoothness: Yes Cycling Dynamics: Yes (TWiN2) Balance L/R: Yes (TWiN2) Operating temperature: from -5°C to +50°C Storage temperature: from -20°C to +50°C Battery specificationsBattery type: Lithium CR2032 3V Battery capacity: 200 mAh Battery autonomy in use: max. 200 hours Battery autonomy in sleep: max. 6 months Battery autonomy in ShipMode: max. 24 months Low battery notification: Yes Software specificationsSoftware update from INPEAK MANAGER App: Yes Modification of “Scale Factor”: Yes Zwift Compatible Mode: Yes ANT+ Compatibility: Yes Bluetooth Low Energy Compatibility: Yes Auto sleep: Yes Auto wake-up: Yes Package contentsCrank with integrated power meterBrief instruction manualSticker setSpare O-RingDevice data card1x CR2032 battery