Non-round rings are supported perfectly with the P1. We are taking 40 individual angular velocity measurements and subsequently 40 power measurements per pedal stroke. Any acceleration/deceleration within a pedal stroke would be measured. Other systems assume constant angular velocity, which typically reports [higher] power when using non-round rings.
Do the P1 pedals support oval/non-round chainrings?
Related articles
- Will Changing Chain Rings or Changing Crankarm Length Effect Power Meter Accuracy?
- Can I manually zero or auto zero the P1 pedals?
- Can I adjust the release tension on the pedal?
- How do I get the P1 pedals to work with a Garmin head unit?
- Can I purchase just the power meter spider for my existing SRAM crank?