Integrating the multiple compatibility, core function, colorful laser stickers with reliable battery life, P505 Spider-based Power Meter will provide a powerful cycling experience, improving your performance in a scientific and effective manner.

• Adapting Various Chainring for Flexibility 4-bolt and 5 bolt chainring can be switched freely. Both single and oval chainring can be adapted. P505-S1108/S1103/R110X supporting various 110BCD 4-arm and 5-arm chainrings. Custom-designed for SRAM AXS chainring. P505-S1078 supports the new 107BCD 4-arm chainring
• ±1% Power Accuracy, 4 Data Function P505 spindle based power meter has 4 kinds of power data: power, cadence, left and right balance, and pedaling smoothness. With years of power research and development of advanced algorithms, the measured data is sensitive and reliable, the power accuracy up to ±1%
• Support ANT+ and Bluetooth 1 workout can be recorded on multi devices
  • BIKE COMPUTER: Mainstream bike computers like Garmin, Bryton, etc
  • APP: Zwift, Onelap, etc
• Easy Charge, 200-hour Battery Life With in-built batteries, the power meter is charged with magnetic chargers. Fully charged within 3.5 hours, the battery life can reach 200 hours.
• Colorful Stickers & IPX7 Waterproof In the package, we provide 6 colorful laser stickers. IPX7 waterproof, breaking the limits of wind and rain

Weight (excluding stickers): 110g (S1078 as example)
Power Accuracy: ±1%
Power Range: 0-2500W
Cadence Range: 20-240RPM
Data Functions: Power, Cadence, Left-right Balance, Pedaling Smoothness
Calibration: Auto-calibration, Reverse0chain Calibration, Manual Calibration
Wireless Interface: ANT+, Bluetooth
Waterproof Grade: IPX7
Working Temperature: -10-50 ?
Power Supply Mode: Magnetic Base Rechargeable Lithium Battery
Endurance: 200h
Compatible Chainring: P505-S1108 / R110X / S1103: Shimano 110BCD 4-arm chainring; Sram, Rotor, FSA, etc. 110BCD 5-arm chainring P505-S1078: Sram 107BCD 4-arm chainring
Compatible Crank Arm: P505-S1108 / S1078: Sram 8-bolt crank arm (with Sram Red AXS, Force AXS, Red 22, and Quarq, etc.) P505-S1103: Sram 3-bolt crank arm (with SRAM Force 22, Rival 22, S-900 etc.) P505-R110X: Rotor Aldhu, Vegast etc. 45-tooth crank arm