{"product_id":"shimano-grx-fc-rx610-2-46-30t","title":"Shimano GRX FC-RX610-2 (46\/30T)","description":"\u003cp\u003e\u003cb\u003eGravel-Tuned Gearing. Expanded Tire Clearance.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe engineering highlight of the \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca rel=\"noopener\" href=\"https:\/\/bike.shimano.com\" class=\"ng-star-inserted\" target=\"_blank\"\u003eShimano GRX FC-RX610-2\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e is its \u003cb\u003e+2.5mm outboard chainline design\u003c\/b\u003e. By shifting the chainrings slightly outward compared to traditional road cranks, Shimano opens up vital frame clearance for high-volume gravel tires and mud shedding. Paired with an optimized 46\/30T sub-compact chainring combination, it provides a low-ratio 1:1 climbing option when paired with modern 12Speed wide-range cassettes.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy the GRX FC-RX610-2 Belongs on Your Gravel Build:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eGravel-Optimized 46\/30T Chainrings:\u003c\/b\u003e Sub-compact chainring ratio offers an ultra-low climbing gear for steep, loose ascents while keeping enough top-end speed for fast group pavement sections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e+2.5mm Outboard Chainline:\u003c\/b\u003e Moves the chainline to 47.0mm, increasing frame clearance for wide, aggressive gravel tires (up to 700x45c+) and preventing thick mud buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTight 16T Step Gap:\u003c\/b\u003e Smaller teeth differential between outer and inner rings means smoother, less disruptive front shifts with minimal cadence drop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHollowtech II 24mm Axle:\u003c\/b\u003e Utilizes Shimano’s benchmark 24mm spindle system for exceptional stiffness, low rotating weight, and universal bottom bracket serviceability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDurable Anodized Finish:\u003c\/b\u003e High-strength aluminum crank arms and steel-reinforced chainrings resist pedal strikes, shoe rub, and grit abrasion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSeries:\u003c\/b\u003e Shimano GRX RX610 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDrivetrain Speed:\u003c\/b\u003e 2x12Speed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eChainring Combination:\u003c\/b\u003e 46\/30T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eChainline:\u003c\/b\u003e 47.0mm (+2.5mm vs. standard road)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eQ-Factor:\u003c\/b\u003e 151mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSpindle Diameter:\u003c\/b\u003e 24mm (Hollowtech II)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePCD \/ BCD:\u003c\/b\u003e 110\/80mm Asymmetric 4-Bolt\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e ~815 grams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe Alegro Perspective:\u003c\/b\u003e The FC-RX610-2 is our go-to crankset recommendation for riders building up an accessible, ultra-reliable 2x12 gravel rig. A 46\/30T combo combined with a 12Speed rear cassette gives you the ultimate bail-out gears for heavily loaded bikepacking bags or steep 15% gravel climbs. Plus, the standard 24mm spindle fits almost every bottom bracket standard on the market without annoying squeaks or proprietary adapters.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOptimal Cadence Control. Maximum Tire Clearance. Master Modern Gravel with Shimano.\u003c\/b\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"165mm","offer_id":51233784594655,"sku":"EFCRX6102AX60","price":235.0,"currency_code":"CAD","in_stock":false},{"title":"170mm","offer_id":51233784627423,"sku":null,"price":235.0,"currency_code":"CAD","in_stock":false},{"title":"172.5mm","offer_id":51233784660191,"sku":null,"price":235.0,"currency_code":"CAD","in_stock":false},{"title":"175mm","offer_id":51233784692959,"sku":null,"price":235.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5452\/3103\/files\/31749bb155febc44ce2a6ee4ede027eecda0e696.png?v=1787166444","url":"https:\/\/alegrocycles.com\/products\/shimano-grx-fc-rx610-2-46-30t","provider":"Alegro Cycles","version":"1.0","type":"link"}