SRAM Power Meter Spider AXS E1 For Threaded Mount Chainrings - Red (Including 8 Bolts And Thread Back Up Pin For Chainring):

When you need the absolute best from your training data, the accuracy and reliability of the RED XPLR AXS Power Meter is the way to go. The spider design uses a proprietary thread-on chainring mount system which allows us to reduce weight and increase stiffness without compromising the ability to swap rings. A dual sided power measurement system, it’s accurate to +/-1.5% even as weather conditions change, and boasts unbeatable battery life.

FEATURES

• Thread Mount design is light, stiff and accurate, and available in 38T-46T
• +/- 1.5% accuracy
• User replaceable CR2032 battery with 200-hour battery life
• Bluetooth low energy technology and ANT+ wireless data transfer
• MagicZero automatically checks and recalibrates your power meter as you ride
• No cadence magnet required
• 10K Temperature Compensation
• Waterproof (IPX7 waterproof to 1 meter for 30 minutes)
• AXS™ enabled for easy monitoring and firmware updates

SPECIFICATIONS
Bolt Circle Diameter (BCD) Thread Mount
BB Spindle Interface DUB
Power Meter Type Ant USB