The Coospo S10 Spider Power Meter with Crankset (Easton) combines a spider-based power meter with a crankset compatible with the Easton Cinch interface. This version targets riders who prefer fitting a complete package rather than adding only a sensor to an existing crank.

The sensor measures power, cadence, left-right balance and pedalling smoothness. It communicates via ANT+ and Bluetooth, charges through a magnetic port, and works with the CoospoTools app.

Key features

• S10 spider sensor integrated with an Easton-type crankset
• Easton interface, 110 BCD, 4-bolt mounting
• Stated spindle options: 24 mm or 29 mm depending on configuration
• Available crank lengths: 160, 165, 170 and 172.5 mm
• Claimed power range: 0 to 2800 W
• Claimed accuracy: ±1%
• Cadence: 20 to 240 rpm
• Claimed battery life: up to 300 hours
• IPX7 rating
• Magnetic charging

This complete package makes sense if you want to replace an existing crankset while adding power measurement. Installation, however, requires carefully checking the bottom bracket, frame clearance and spacer selection.

Our take

Tested for several months by GravelPassion, this set stands out for its aggressive pricing, solid finish and stable connectivity. It is less relevant for riders seeking maximum accuracy across several bikes, but it provides a serious entry into power-based training.

The Coospo S10 Spider Power Meter is a spider-format power meter designed for cranksets with the Easton Cinch interface. It is aimed at riders who want to add power measurement without using pedal-based meters.

With a claimed weight of 102 g, 7075 aluminium construction and integration between the chainring and crank, the S10 aims to remain discreet once installed. It transmits data via ANT+ and Bluetooth to a bike computer or a compatible app.

Key features

• Spider power meter for the Easton Cinch interface
• 110 BCD, 4-bolt mounting
• Stated material: 7075 aluminium
• Claimed weight: 102 g
• Measures power and cadence
• Available data: left-right balance and pedalling smoothness
• Automatic, manual or backpedalling calibration
• ANT+ and Bluetooth transmission
• Claimed battery life: up to 300 hours
• IPX7 rating
• Magnetic charging

As with any spider power meter, results also depend on installation quality, the crankset used, the chainring and spacers. It is therefore important to check compatibility before installation.

Our take

GravelPassion’s test of the crankset-mounted version shows stable connectivity and data that is usable for tracking progress. It does not replace the best benchmarks for absolute accuracy, but its price makes it an interesting option to get started with power-based training.