{"product_id":"shimano-grx-fc-rx610-crankset-165-mm-double-12-speed-ckst2819-bicycle-crankset","title":"Shimano GRX FC-RX610 Crankset 12-Speed 165mm 110 - 80BCD 46 - 30t 42.5mm Hollowtech II Black","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your gravel bike with the Shimano GRX FC-RX610-2 Crankset-an advanced, lightweight, and performance-driven component engineered for mixed-terrain cycling. Crafted with high-quality materials and innovative Shimano technology, this 12-speed crankset ensures reliable power transfer, optimized efficiency, and versatile gearing for challenging gravel, dirt trails, and paved roads.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eBuilt with Shimano's Hollowtech II spindle interface, the FC-RX610 crankset offers superior strength-to-weight ratio, durability, and weight savings. Constructed from high-grade aluminum, it provides excellent stiffness and resilience to withstand tough riding conditions. The 165mm crank arm length ensures optimal pedaling efficiency and clearance on varied terrains.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Components:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned specifically for gravel endurance, this crankset features a 46\/30T gear ratio, ideal for preserving cadence on steep climbs and rough surfaces. The smaller gear steps between chainrings enable smoother gear shifts and precise cadence control during rapid terrain changes. Compatible with HG 12-speed chains, the FC-RX610 guarantees seamless shifting performance across the entire drivetrain.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eInnovative Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003e- Gravel-optimized gear combination balances power and cadence for mixed terrain riding\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e- 47mm chainline for increased clearance and compatibility with modern disc brake hubs\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003e- 110\/80 BCD (Bolt Circle Diameter) with Shimano's asymmetric chainring design for improved stiffness and gear alignment\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e- 151mm Q-factor for a natural, comfortable riding stance\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- 9\/16\" pedal spindle compatibility, accommodating a wide range of pedal options\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003eSleek black finish complements any gravel bike build, combining style with function. Whether you're tackling rugged dirt paths, gravel descents, or hybrid road routes, the FC-RX610-2 crankset delivers dependable performance and versatility for adventure-minded cyclists.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003eAdditional Specifications:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Crank Length: 165mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Chainring Sizes: 46\/30T for versatile gearing\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Drivetrain Compatibility: Shimano 12-speed systems\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Designed for gravel, cyclocross, and mixed-terrain riding\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Does not include bottom bracket; compatible with Shimano Hollowtech II bottom brackets\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003eEnhance your gravel setup with the Shimano GRX FC-RX610-2 Crankset-the perfect blend of engineering excellence, lightweight design, and reliable performance for serious riders seeking optimal efficiency across varied terrains.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eOptimized for gravel and mixed-terrain riding, the Shimano FC-RX610-2 Crankset features a lightweight Hollowtech II spindle interface engineered for high durability and precise power transfer. \u003c\/li\u003e\n\u003cli\u003eEquipped with a 46\/30T gear combination and smaller gear steps, this 12-speed crankset delivers seamless cadence control and enhanced acceleration on challenging surfaces. \u003c\/li\u003e\n\u003cli\u003eConstructed from high-quality materials with a corrosion-resistant black finish, this crankset ensures long-lasting performance and a sleek, aggressive look suited for versatile cycling styles. \u003c\/li\u003e\n\u003cli\u003eDesigned with a 47mm chainline and 80\/110 BCD, it provides compatibility with a range of gravel and road disc hubs, offering flexible installation options for mixed-terrain bikes. \u003c\/li\u003e\n\u003cli\u003eInnovative Shimano technology and asymmetric chainring BCD optimize gear shifting efficiency, reducing chain rub and enhancing overall drivetrain responsiveness for confident trail riding.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":42203555594307,"sku":"CKST2819","price":180.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CK1034.jpg?v=1773744885","url":"https:\/\/365cycles.com\/products\/shimano-grx-fc-rx610-crankset-165-mm-double-12-speed-ckst2819-bicycle-crankset","provider":"365 Cycles","version":"1.0","type":"link"}