SRAM GX Eagle Bicycle Build Kits The SRAM GX Eagle system is engineered for riders who demand optimal performance and long-term durability. Tested and proven across the most rugged terrains, the Eagle ecosystem provides an expanded gear range that is 100% compatible across all SRAM Eagle drivetrain tiers. ✅Precision Components and Engineering GX Eagle Crankset: Engineered for absolute chain control; each tooth is precisely shaped to work seamlessly with the chain’s inner and outer links for a quieter ride. Refined Rear Derailleur: Features an updated cage architecture that significantly improves chain management and shifting precision. High-Control Trigger Shifter: Puts total gear selection into the thumb of one hand, providing an ergonomic and intuitive shifting experience. GX Eagle Chain: Specifically designed to ensure smooth, efficient power transfer and rapid shifting under various trail conditions. ✅Advanced Cassette Technology XG-1275 10-52t Cassette: Offers a massive 520% gear range, allowing riders to conquer the steepest climbs with ease. Full Pin™ Technology: Utilizes lightweight, high-strength stainless steel pins to join the cogs, resulting in a cassette that is both incredibly durable and light. Driver Compatibility: Specifically designed to fit the SRAM XD™ Driver body only. Versatile Range: The derailleur and cassette system are fully compatible with both 10-50t and 10-52t gear setups. ✅Technical Specs and Compatibility Chainline Optimization: 49.0mm chainline, perfectly suited for 135mm and 142mm MTB rear hubs. Bottom Bracket Standard: Designed for use with the SRAM DUB™ bottom bracket system (Note: DUB bottom bracket is sold separately). Ecosystem Integration: Part of the unified Eagle drivetrain system, allowing for easy mixing and matching with other Eagle components (SX, NX, X01, XX1).