Upgrade your gravel and mixed-terrain riding with the GRX FC-RX610-1 Crankset - a high-performance, lightweight component engineered for endurance, efficiency, and versatile gearing. Built with advanced materials and innovative technology, this 12-speed crankset is your ideal companion for rugged adventures, gravel racing, and adventure cycling. Materials & Construction The GRX FC-RX610-1 features a durable Hollowtech II spindle interface, crafted from high-quality aluminium for exceptional strength-to-weight ratio. Its sleek black finish not only offers a stylish aesthetic but also resists corrosion, ensuring longevity in tough riding conditions. The single 40t chainring, designed with 's asymmetric BCD 110mm for optimal chain engagement, guarantees smooth, reliable power transfer. Performance & Engineering Designed for mixed-terrain versatility, this crankset balances weight savings with optimal efficiency. At just 812 grams, it offers a lightweight feel without compromising durability. The 170mm crank length provides a natural pedal stance, reducing fatigue over long rides. The 49.7mm chainline ensures compatibility with a wide range of gravel and adventure bikes, maintaining optimal chain clearance and power transfer. Components & Technology Compatible with HG 12-speed chains, the FC-RX610-1 allows seamless integration with 's extensive 12-speed drivetrain systems. Its adaptable gearing options-paired with 10-45t or 10-51t cassettes (sold separately)-give riders a customizable gear range, from closer steps for technical terrain to a wide range for climbing steep grades. The Q-factor of 151mm stabilizes pedaling biomechanics, promoting comfort and efficiency during extended rides. Style & Use Case Finished in sleek black, the FC-RX610-1 combines style with functionality-perfect for gravel riders, adventure cyclists, and enthusiasts tackling mixed terrain. Its robust construction and innovative gearing make it ideal for gravel racing