{"product_id":"shimano-105-rd-r7100-12speed","title":"Shimano 105 RD-R7100 (12Speed)","description":"\u003cp\u003e\u003cb\u003e12-Speed Mechanical Precision. Low-Profile Stability.\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 105 RD-R7100 Rear Derailleur\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\u003eShadow RD architecture\u003c\/b\u003e. By keeping the derailleur body tucked tightly beneath the chainstay and cassette, Shimano minimizes the risk of damage from road debris, parking mishaps, or accidental tipping. Designed specifically to handle modern wide-range 12Speed road cassettes (up to 36T), it delivers a consistent, light-action lever stroke that keeps your pedaling fluid across steep mountain passes and high-speed group rides.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWhy the 105 RD-R7100 Belongs on Your Road Bike:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e12Speed Mechanical Precision:\u003c\/b\u003e Formulated for smooth, instantaneous gear shifts across 12Speed cassettes with the crisp, tactile feedback that mechanical shifting purists demand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLow-Profile Shadow RD Architecture:\u003c\/b\u003e Keeps the derailleur body protected under the frame structure while providing stable, bounce-free chain movement over rough pavement.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eExpanded Cassette Capacity (Up to 36T):\u003c\/b\u003e Compatible with both 11-34T and 11-36T 12Speed cassettes, giving you access to ultra-low bail-out climbing gears for steep gradients.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDirect Mount Compatibility:\u003c\/b\u003e Fits standard frame derailleur hangers as well as modern Direct Mount interfaces for increased structural rigidity and simpler rear wheel removal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePolished Alloy Construction:\u003c\/b\u003e Built with durable aluminum link arms and a rigid pulley cage designed to withstand high-mileage training and all-weather road conditions.\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 105 R7100 Series\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDrivetrain Speed:\u003c\/b\u003e 12Speed Mechanical\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLow Sprocket Max:\u003c\/b\u003e 36T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLow Sprocket Min:\u003c\/b\u003e 34T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTop Sprocket Max:\u003c\/b\u003e 11T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTotal Capacity:\u003c\/b\u003e 41T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMaximum Front Difference:\u003c\/b\u003e 16T\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e ~249g\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 Mechanical 105 12-speed group is a massive hit. The RD-R7100 derailleur proves that you don't need batteries or charging cables to get flawless, high-precision 12Speed shifting. Pairing this derailleur with an 11-36T cassette gives you an incredibly broad gear range that makes climbing long, steep mountain passes feel effortless. It’s simple to cable up, holds its adjustment indefinitely, and delivers benchmark Shimano reliability mile after mile.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e12Speed Mechanical Precision. Expanded Climbing Range. Elevate Your Road Performance with Shimano.\u003c\/b\u003e\u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":51352108892383,"sku":"IRDR7100","price":95.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/5452\/3103\/files\/fca2fbee617bfd452ab212432385fdb1d51475f3.jpg?v=1788892834","url":"https:\/\/alegrocycles.com\/products\/shimano-105-rd-r7100-12speed","provider":"Alegro Cycles","version":"1.0","type":"link"}