The INPEAK Powercrank-E 105 R7100 Power Meter
The INPEAK Powercrank-E 105 R7100 USB power meter is a smart upgrade for cyclists who want accurate data without the hassle of replaceable batteries. Thanks to its built-in rechargeable battery, you simply charge it via USB and get back on the road—quick and easy.
Specifications of the Powercrank-E
- High accuracy: ±2% measurement deviation
- Wide power range: 20 to 2000 watts
- Cadence tracking: 20 to 200 RPM
- Wireless connectivity: ANT+ and Bluetooth compatibility
- Power source: rechargeable 110 mAh Li-Po battery
- Reliable performance with active temperature compensation
- Durability: IP67-rated water and dust resistance
- Ultra-lightweight design: only 10 grams
USB Rechargeable Internal Battery
One of the biggest advantages of this power meter is the internal rechargeable battery. Using the included magnetic USB cable, it fully charges in just 2 hours and delivers up to 90 hours of riding time. No need to replace batteries—just plug in, charge, and ride. This makes it a low-maintenance and reliable choice for consistent training.
Accurate and Consistent Power Data
With an accuracy of only ±2% deviation and a power range from 20 to 2000 watts, you can rely on precise measurements every ride. The power meter also provides advanced metrics like torque effectiveness and pedal smoothness, helping you improve your pedaling efficiency.
Left-Sided Power Measurement
This is a single-sided power meter that measures power on the left crank arm and doubles it to estimate total output. For most riders, this delivers consistent and reliable data. Even with minor left-right imbalance, your data remains stable for tracking performance over time. Cadence measurement is included as standard.
Lightweight and Low-Profile Design
The ultra-slim sensor adds only 10 grams to your crank and is designed to fit frames with tight clearance between the chainstay and crank arm. It’s one of the lightest and most discreet power meters available.
Easy Connectivity
With both ANT+ and Bluetooth support, this power meter connects seamlessly to almost any bike computer, smartwatch, or training app. Automatic temperature compensation ensures accurate readings in all conditions, from -5°C to +50°C.
Compatibility of the Powercrank-E
Designed for Shimano 105 R7100 cranksets, but also compatible with other Shimano Hollowtech II cranksets, including Ultegra and Dura-Ace 12-speed models.
What’s Included
- INPEAK Powercrank-E 105 R7100 power meter
- Magnetic USB charging cable
- User manual
- Sticker set
- Device data card

