XPOWER-S is a reliable and stable spider based power meter that is easy to use and install. Based on the excellent structural mechanics and electronic circuit design it consitanly gives ±1.5% accurate measurements of watts every second.

The measurement sensor of the XPOWER-S is located inside the spider, which is the most stable and accurate measurement position. The XPOWER-S uses high-precision strain gauges and high-precision acceleration sensors with built-in intelligent temperature compensation algorithms to provide you with both accurate and reliable power values consistantly in all locations.

Models available for:
SRAM 3 bolt and 8 bolt fitting cranks in 4x104, 4x107, 4x110 Shimano and 5x110 BCD 
Rotor 3D30, 3DF, 3D+, Aldhu, Vegast, REX1, REX2 4x104, 4x110 Shimano, 5x110 and 5x130 BCD 
Shimano MTB Deore M6100, SLX M7100, XT M8100, XTR M9100 in 4x104 BCD 
Raceface MTB in 4x104 BCD 
Easton Road EC90SL and EA90 in 5x110BCD
Cannondale One, SI, SISL2 in 4x104 and 5x110 BCD
Specialized SWorks cranks in 5x110 BCD