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Product Description Shimano GRX FC-RX820-1 crankset - one chainring for efficiency on any terrain The Shimano GRX FC-RX820-1 is a lightweight, very efficient 1x12-speed crank for gravel use of all kinds. The set-up with one chainring is suitable for all those who like things to be uncomplicated and are looking for an all-purpose crank for exploring, racing, high-speed section and mountain crossings. In general, this solution is affected less by dirt and mud. In combination with an appropriate cassette, the two chainring options offer you a wide range of ratios for any terrain. FC-RX820 features the proven Hollowtech II design for highly efficient power transmission and outstanding stiffness with the lowest possible weight. One reason for this is that the crank arms are hollow and, like the chainring, made of lightweight aluminium. The model has a specific bolt circle diameter of 110 mm. It produces a chainline of 49.7 mm and a Q-factor of 151 mm. Specifications:Application:GravelCompatibility:Shimano 1x12-speedChainring Mount:110 mm bolt circle diameter, 4-arm asymmetricalTechnical Information:Series:GRX RX820Crank Arm Material:aluminiumChainring Material:aluminiumAxle Material:steelGradation:40 tooth, 42 toothCrank Arm Length:170.0 mm, 172.5 mm, 175.0 mmChainline:49.7 mmQ-Factor:151 mmAxle Diameter:24 mmCompatible BSA Shell Width:68 mmRecommended Bottom Bracket:SM-BBR60 or SM-BB72-41B Press Fit Hollowtech II (not included)Recommended Chain:HG 12-speed (e.g. CN-M8100)Compatibility:Bottom Bracket:BB-R9100, SM-BB9000, SM-BBR60, SM-BB6700, SM-BB5700, BB-RS501, BB-RS500, SM-BB4600, SM-BB92-41B, SM-BB72-41B, SM-BB71-41B, BB-RS500-PBChain:CN-M8100, CN-M9100, CN-M7100, CN-M6100Features:1x12-speed aluminium crank for gravel usedeveloped for mixed terrainwide range of options for the optimal gravel gear ratio and different riding stylesless susceptible to being clogged up by mud thanks to only one chainringHollowtech II: perfect balance between stiffness, stability, weight and rotational efficiencyhollow crank arms (Hollowtech)anodised crank armschainring lacquered, anodised teethaluminium chainring boltsTechnology:Hollowtech II Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life. Manufacturer Numbers:170.0 mm 40 tooth:IFCRX8201CXB0170.0 mm 42 tooth:IFCRX8201CXB2172.5 mm 40 tooth:IFCRX8201DXB0172.5 mm 42 tooth:IFCRX8201DXB2175.0 mm 40 tooth:IFCRX8201EXB0175.0 mm 42 tooth:IFCRX8201EXB2Contents:1 x Shimano GRX FC-RX820-1 crankset (40-tooth or 42-tooth)1 x Shimano crank bolt Weight: black | 170,0 mm | 40: 644 g black | 170,0 mm | 42: 656 g Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com
