Shimano GRX FC-RX600 10 Speed CranksetHOLLOWTECH II CranksetDesigned to conquer rough gravel roads and any combination of dust and mud, the Shimano GRX series will give you comfortable, stress-free performance no matter how rowdy the trail gets. The 10-speed GRX FC-RX600 crankset provides you with an ultra-wide gear range for long tours, optimum gearing for mixed terrain, and a simple design that shares the same crankset among both 1x and 2x models. Continuing with simplicity, the category-leading GRX 800-series can be seamlessly combined with any GRX 600-series components. As with all Shimano cranksets, the GRX crankset features a 2-piece design that utilizes Shimano's Hollowtech II technology.All GRX cranksets also use a new, +2.5mm chainline for increased tire and frame clearance.FeaturesWider gear range for long tours or unknown terrainOptimum gearing for mixed terrains and riding stylesGear combination: 46-30TShimano Part Number:FC-RX600-10SPECIFICATIONSSpeeds2x10BB CompatibilityRecommended BB_Pressfit: BB-RS500-PBRecommended BB_Threaded (normal): BB-RS500Chain Ring46-30TCrank Arm Length165 mm, 170 mm, 172.5 mm, and 175 mmBB Sheel Width68mm, 70mmChainring Material-P.C.D.110/80mmChainline46.9mmQ-Factor151mmBottom Bracket IncludedNoIntended UseGravel, CXWeight819g | Shimano GRX FC-RX600 10 Speed Crankset 165mm, 46/30 Tooth