FSA Powerbox power meter BCD 110 mm

FSA Powerbox: the bike power meter built into your crankset to push your limits

When it comes to improving your cycling performance, having the right tools makes all the difference. Among them, the bike power meter has become a must-have for serious cyclists. Reliable, accurate, and built to last, the FSA Powerbox stands out by integrating power measurement technology directly into the crankset. Let’s take a closer look at this performance-driven piece of equipment.

A power meter built into the crankset

The FSA Powerbox isn’t just another power meter. Unlike models that measure power at the pedals or rear hub, this one is integrated right into the crankset. This design enables ultra-precise power readings, captured at the heart of your drivetrain. By analyzing the forces applied to the crank arms, the Powerbox provides accurate, real-time wattage data.

This integration also minimizes the risk of external damage and ensures a compact, clean look that won’t disrupt your bike’s balance or aesthetics.

Technical features of the FSA Powerbox

The FSA Powerbox comes in several versions to suit road, MTB, and gravel bikes. Here are the main technical specifications:

• Dual-leg power measurement: records power from both left and right legs for better balance tracking.

• ±2% accuracy, consistent across a wide range of temperatures and conditions.

• Built-in ANT+ and Bluetooth® connectivity: compatible with most GPS bike computers (Garmin, Wahoo, Bryton, etc.).

• CNC-forged aluminum crank arms: a combination of strength and lightweight performance.

• BB386EVO axle design: for wide compatibility with various road and MTB frames.

• Over 400 hours of battery life with a replaceable CR2450 coin cell.

Why choose the FSA Powerbox bike power meter?

The FSA Powerbox is designed for cyclists who want accurate power data without compromising integration or design. It’s perfect for amateur riders looking to improve, as well as elite athletes chasing marginal gains.

One of its biggest advantages is that it comes as a complete crankset — with interchangeable chainrings, stiff crank arms, and a well-engineered bottom bracket axle for optimal power transfer. In other words, the Powerbox is more than just a data tool; it’s a core part of your drivetrain, designed to elevate your performance.

In addition, FSA offers a software upgrade that unlocks advanced features like pedal smoothness, detailed left/right balance, and ultra-accurate cadence tracking.

In summary

Choosing a bike power meter like the FSA Powerbox means choosing precision, durability, and high-level performance. As a fully integrated component of your crankset, it delivers key training data while keeping your setup clean and efficient.

Looking for a reliable and future-ready crankset power meter? The FSA Powerbox ticks all the boxes, whether you're training on the road or pushing hard on the trails.