Magene PES-P515 Power Meter With Alloy Cranks Unlock pro-level insights and unyielding performance with the Magene PES P515 Power Meter Crankset, a masterpiece of structural engineering designed for the data-driven cyclist. Featuring a specialized triple-hollow channel design and CNC-machined 7075 aircraft-grade aluminum, this system achieves a remarkable balance of lightweight agility and sprint-proof rigidity. Rigorously tested through 100,000 high-stress pedaling cycles, the P515 ensures that every watt you produce is captured with plus or minus 1% accuracy. Its 24mm steel spindle offers universal compatibility with Shimano-standard bottom brackets, making it a seamless, high-performance centerpiece for your modern road build. Precision is nothing without consistency, which is why the P515 utilizes intelligent temperature compensation to maintain rock-solid data integrity, whether you are climbing in the midday heat or descending in the morning chill. Beyond basic wattage, it captures a comprehensive suite of metrics-;including cadence, left/right balance, and pedaling smoothness-;allowing you to diagnose inefficiencies and refine your technique in real-time. With a massive 330-hour battery life and IPX7 waterproofing, this power meter is built to endure epic training blocks and multi-day stage races without missing a beat, syncing effortlessly via ANT+ or Bluetooth to your favorite devices.  What's in the box P515 Spider-based power meter pair of PES crank arms Lock ring of conversion kit Magnetic charging cable X6 Stickers Quick start guide