{"product_id":"shimano-ultegra-di2-r8170-road-groupset-2x12-50-34t-170mm-11-34t-bsa","title":"Shimano Ultegra Di2 R8170 2x12 Road Groupset - 50\/34T (170mm \\| 11-34T \\| Threaded BSA BB Included)","description":"\u003ch2 data-path-to-node=\"11,0\"\u003eSovereign Pro-Tier Velocity: Hybrid Wired-Wireless 12-Speed Di2 Logic Meets Hollowtech II Crank Architecture and Masterful Servo Wave Hydraulic Braking\u003c\/h2\u003e\n\u003cp data-path-to-node=\"11,1\"\u003eExperience the lightning-fast speed of Shimano's pro-proven electronic shifting matrix, maximize your power transfer with hollow-forged aluminum engineering, and command fast descents with flawless hydraulic brake control. The \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"227\"\u003eShimano Ultegra Di2 R8170 2x12 Road Groupset\u003c\/b\u003e represents the ultimate sweet spot of competitive road racing—delivering 99% of the performance of flagship Dura-Ace systems in a highly durable, race-ready platform. Sourcing full component groups independently from international online warehouses often exposes you to long shipping delays, single-item courier minimums, or unexpected port clearance hold-ups. Epic Sports handles all international logistics natively. Delivered as a complete, elite-tier pre-configured package containing an ultra-stiff \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"776\"\u003e50\/34T Hollowtech II crankset (170mm arms)\u003c\/b\u003e, a wide-range \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"833\"\u003e11-34T cassette\u003c\/b\u003e, and the matching \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"867\"\u003eShimano SM-BBR60 threaded BSA bottom bracket\u003c\/b\u003e, this system modernizes your road machine with immediate mechanical synchronization.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11,3\"\u003eWhy the Ultegra Di2 R8170 System Governs the Peloton:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"11,4,0,0\"\u003e\n\u003cb data-path-to-node=\"11,4,0,0\" data-index-in-node=\"0\"\u003eHybrid Wired-Wireless Di2 Shifting Matrix:\u003c\/b\u003e Unrivaled speed execution. Uses wireless cockpit transmission to keep your bars clean, paired with a central high-capacity battery wired directly to the derailleurs for lightning-fast gear alignment.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,1,0\"\u003e\n\u003cb data-path-to-node=\"11,4,1,0\" data-index-in-node=\"0\"\u003eHollowtech II Aluminum Crankset Structure:\u003c\/b\u003e Ultimate structural stiffness. Hollow-forged aluminum arms optimize the balance between weight reduction and maximum power transfer when sprinting out of the saddle.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,2,0\"\u003e\n\u003cb data-path-to-node=\"11,4,2,0\" data-index-in-node=\"0\"\u003eSurgical Servo Wave Hydraulic Disc Braking:\u003c\/b\u003e Continuous stopping control. Integrates Shimano’s advanced Servo Wave lever physics to provide rapid pad contact and wide, highly adjustable modulation through tight corners.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,3,0\"\u003e\n\u003cb data-path-to-node=\"11,4,3,0\" data-index-in-node=\"0\"\u003e10% Wider Brake Caliper Pad Clearance:\u003c\/b\u003e Silent operation security. Expands internal pad spacing significantly to completely eliminate frustrating rotor rub or scraping sounds during intense out-of-the-saddle climbing efforts.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,4,0\"\u003e\n\u003cb data-path-to-node=\"11,4,4,0\" data-index-in-node=\"0\"\u003eShimano SM-BBR60 Threaded BSA Bottom Bracket Included:\u003c\/b\u003e Creak-free structural simplicity. Ships complete with the premium English threaded bottom bracket, featuring advanced labyrinth seals for smooth rotation and element defense.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"11,6\"\u003eTechnical Specifications \u0026amp; Product Architecture:\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"11,7\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrivetrain Architecture Variable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Architecture \u0026amp; Product Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,1,0,0\"\u003e\u003cb data-path-to-node=\"11,7,1,0,0\" data-index-in-node=\"0\"\u003eDrivetrain Speed Match\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,1,1,0\"\u003eModern Peak-Performance \u003cb data-path-to-node=\"11,7,1,1,0\" data-index-in-node=\"24\"\u003e2x12-Speed Hybrid Electronic Configuration\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,2,0,0\"\u003e\u003cb data-path-to-node=\"11,7,2,0,0\" data-index-in-node=\"0\"\u003eCrankset Composition\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,2,1,0\"\u003eHollowtech II Hollow-Forged High-Strength Aerospace Aluminum\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,3,0,0\"\u003e\u003cb data-path-to-node=\"11,7,3,0,0\" data-index-in-node=\"0\"\u003eCrankset Tooth Profiling\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,3,1,0\"\u003e\u003cb data-path-to-node=\"11,7,3,1,0\" data-index-in-node=\"0\"\u003e50\/34T Compact Drivetrain Dual Chainring Array\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,4,0,0\"\u003e\u003cb data-path-to-node=\"11,7,4,0,0\" data-index-in-node=\"0\"\u003eCrankarm Length Spec\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,4,1,0\"\u003e\u003cb data-path-to-node=\"11,7,4,1,0\" data-index-in-node=\"0\"\u003e170mm Length\u003c\/b\u003e High-Efficiency Lightweight Crank Arm Layout\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,5,0,0\"\u003e\u003cb data-path-to-node=\"11,7,5,0,0\" data-index-in-node=\"0\"\u003eCassette Range Layout\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,5,1,0\"\u003e\u003cb data-path-to-node=\"11,7,5,1,0\" data-index-in-node=\"0\"\u003e11-34T 12-Speed Cassette\u003c\/b\u003e Hyperglide+ (Optimized for elite climbing cadence)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,6,0,0\"\u003e\u003cb data-path-to-node=\"11,7,6,0,0\" data-index-in-node=\"0\"\u003eBottom Bracket Inclusion\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,6,1,0\"\u003e\u003cb data-path-to-node=\"11,7,6,1,0\" data-index-in-node=\"0\"\u003eShimano SM-BBR60 BSA Threaded Standard\u003c\/b\u003e \u003cspan class=\"math-inline\" data-math=\"68mm Width Match\" data-index-in-node=\"39\"\u003e$68mm Width Match$\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,7,0,0\"\u003e\u003cb data-path-to-node=\"11,7,7,0,0\" data-index-in-node=\"0\"\u003eBraking System Core\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,7,1,0\"\u003eHydraulic Disc Dual-Piston Flat-Mount Calipers (Rotors Sold Separately)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,8,0,0\"\u003e\u003cb data-path-to-node=\"11,7,8,0,0\" data-index-in-node=\"0\"\u003eFulfillment Status\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,8,1,0\"\u003eSecurely Stocked Natively in Kenya, 100% Factory Authenticity Verified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"11,9\"\u003eFrequently Asked Questions (FAQ) for Discerning Road Riders:\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11,10\"\u003e\u003cb data-path-to-node=\"11,10\" data-index-in-node=\"0\"\u003eHow fast is the shifting on this 12-speed Ultegra R8170 groupset compared to mechanical systems?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,11\"\u003eThere is simply no comparison. The Ultegra R8170 Di2 platform features redesigned electronic motors that execute rear gear shifts 58% faster and front derailleur shifts 45% faster than previous generations. Because the system transmits commands across an encrypted wireless protocol from the hoods to a high-capacity central battery wired directly to high-torque motors, shifting is instantaneous. Your gear changes remain perfectly crisp and predictable under extreme sprinting torque or heavy climbing loads, with absolute zero risk of derailleur cable stretch or alignment degradation over time.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,12\"\u003e\u003cb data-path-to-node=\"11,12\" data-index-in-node=\"0\"\u003eIs the bottom bracket included with this groupset, and will it fit my frame?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,13\"\u003eYes! Unlike standard groupset bundles that leave out frame-dependent parts, this premium package \u003cb data-path-to-node=\"11,13\" data-index-in-node=\"97\"\u003eincludes the official Shimano SM-BBR60 threaded bottom bracket\u003c\/b\u003e. This fits road frames featuring a traditional 68mm English threaded (BSA) bottom bracket shell. It provides an incredibly secure, reliable interface that is highly resistant to the frustrating creaking sounds that often plague press-fit alternatives. Disc brake rotors are sold separately, allowing you to choose the exact diameter (140mm or 160mm) your build requires.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11,15\"\u003eAuthentic Local Stock – Skip Port Surcharges \u0026amp; Customs Hassles\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11,16\"\u003eAvoid the extreme frustration of buying full electronic groupsets and technical component packages from international online warehouses, only to face weeks of shipping delays, heavy fluid air freight transport restrictions, or astronomical hidden entry duties at the port. Epic Sports handles all international logistics, bulk freight compliance, and customs handling natively. We provide guaranteed 100% authentic performance gear, local product support, and secure, trackable express delivery straight to your doorstep across Kenya.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Shimano Ultegra Di2 R8170 2x12 Road Groupset - 50\/34T (170mm | 11-34T | BSA Included)\",\n  \"image\": [\n    \"https:\/\/epicsports.cc\/products\/shimano-ultegra-di2-r8170-road-groupset-2x12-50-34t-170mm-11-34t-bsa\"\n  ],\n  \"description\": \"Premium hybrid wireless electronic road bicycle groupset engineered by Shimano. The Ultegra Di2 R8170 features a 2x12 configuration with hollow-forged aluminum 50\/34T chainrings, 170mm arms, an 11-34T cassette, and includes a threaded Shimano SM-BBR60 BSA bottom bracket. 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