INPEAK Ultegra R8100 Powercrank-E Twin2 Dual-Sided Power Meter

Shimano Ultegra FC-R8100 Power Meter

POWERCRANK-E | TWiN2

Dual-sided power meter integrated with Shimano Ultegra FC-R8100 crankset. Designed without compromise to meet the highest demands of riders.

EVOLUTION

A new, refreshed version of the POWERCRANK-E TWiN2 power meter integrated with the Shimano DuraAce FC-R9200 crank. Even more measuring points – even more precision.

Redesigned power meter with additional strain gauges on the sides of the crank. Learn more!

WHAT IS POWERCRANK-E?

This is our newest version of a power meter created with modernity in mind. We have equipped the reliable POWERCRANK-E measuring system with a rechargeable battery, which you charge using the included magnetic USB cable. It’s not just a power measuring device, it’s your training partner thanks to which you’ll enter a new level of sportsmanship. The INPEAK POWERCRANK-E power meter uses ANT+ and BLE transmission protocols to send power, cadence and a host of detailed cycling performance data. The low-profile, waterproof and durable housing is designed especially for road and gravel bikes. Precise and accurate readings of generated power regardless of weather conditions are provided by ATC’s automatic temperature compensation mechanism from -5°C to +50°C.

WHAT MAKES US DIFFERENT?

• Created in Poland – we sign ourselves to this product
• Low price – one of the cheapest solutions on the market
• Accuracy – our R&D department does not compromise, what matters is flawlessness
• Individual calibration – each power measurement we install is individually calibrated
• Active temperature compensation – temperature changes do not affect accuracy, the measurement adapts automatically
• Durability – confirmed by hundreds of professional riders

Specifications of the Power Meter 

• Measurement precision: ± 2% 
• Power measurement range: 20-2000 W 
• Cadence range: 20-200 rpm 
• Weight: 10 g (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 specifications

• Battery type: "Li-Po, rechargeable "
• Battery capacity: 110 mAh 
• Battery autonomy in use: max. 90 hours 
• Battery autonomy in sleep: max. 6 months 
• Battery autonomy in ShipMode: max. 24 months 
• Charging time (0% -> 100%): 2 hours 
• Low battery notification: Yes 
• Battery charging temperature: from +5°C to +40°C 
• Battery lifetime: Less than 20% capacity loss after 300 full cycles. Approximately 6 year lifetime. 
• Required charger: 5VDC, 1000mA (not included)

Software specifications 

• Software 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 contents

• Crank with integrated power meter 
• USB charging cable
• Brief instruction manual 
• Sticker set
• Device data card