2026 Specialized Sirrus X 2.0

Sirrus X 2.0 Sirrus X 2.0 Fitness / Gravel Bike · Aluminum · Shimano CUES 9-Speed · 12.3 kg Description Key Features Specifications Geometry Offering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between. With bigger, confidence-inspiring tires, a slightly more upright riding position, and a super intuitive one-by drivetrain, the Sirrus X provides the smoothest ride in its class. Like all Specialized performance bikes, the geometry of each frame is uniquely crafted using their Rider-First Engineered™ philosophy — each tube size is specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness, ensuring that no matter what size you're riding, you experience the world's best ride. Class-leading light weight, exceptional pedaling efficiency, and steering precision merge for confident, nearly telepathic handling characteristics. Lightweight A1 Alloy Frame (3.5 lb / 1.7 kg) Lightweight A1 Premium Aluminum frame with clean internal cable routing — Specialized's mid-tier aluminum at just 3.5 lb (1.7 kg) for the frame alone keeps the bike responsive on climbs and easy to maneuver in technical terrain. The internal cable routing keeps shift and brake lines tucked inside the frame for a clean look and protection from the elements. Rider-First Engineered™ Geometry Each frame size uses its own unique tube sizing, specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness — guarantees that every rider, regardless of frame size, gets the same world-class ride quality that Specialized builds into their performance bikes. Hi-Ten Steel Fork Hi-Ten steel fork with flat-mount disc and Plug + Play fender mounts plus low-rider rack mounts — durable, repairable steel construction that absorbs more vibration than aluminum, with the rack and fender mounts ready for commuting and wet-weather use. Wide 700x40c Pathfinder Tires with GRIPTON® Compound Float over rough terrain with fast-rolling Specialized Pathfinder 40c tires featuring proprietary GRIPTON® rubber compound — provides confident traction on chunky gravel and smooth efficiency on pavement, with a tread design that bridges the gap between road slick and gravel knob without compromise. Shimano CUES 1x9 Drivetrain Maximum control through intuitive shifting with 1x9 wide-range gearing and an 11-46T Shimano CUES cassette — single chainring up front simplifies shifting, reduces weight, and cuts maintenance compared to a double or triple crankset, while the 11-46T range covers steep climbs and fast descents without compromise. Tektro Hydraulic Disc Brakes Powerful Tektro 2-piston hydraulic disc brakes deliver reliable, consistent stopping power on pavement and loose surfaces — confident modulation for technical descents, predictable lever feel in wet weather, and the durability needed for daily commuting and all-season training miles. Slightly Upright Riding Position Slightly more upright riding position than a road bike — takes pressure off the lower back, neck, and wrists for long commutes and weekend rides, while still being aggressive enough for efficient fitness riding and confident gravel-road handling. Square-Taper Bottom Bracket BSA square-taper bottom bracket — the workhorse standard for fitness and commuter bikes, easy to service anywhere in the world with basic tools, and compatible with a massive range of aftermarket cranksets if you ever want to upgrade. Optical Gear Display Shifter Shimano CUES 9-Speed shifter with Optical Gear Display — shows the selected gear at a glance so you always know where you are in the cassette range, helpful for newer riders building shifting intuition and experienced riders who don't want to look down at the cassette. Plug + Play Fender/Rack Compatibility Frame and fork feature Plug + Play rack and fender mounts — ready to bolt on fenders for wet-weather commuting or a rack for groceries and gear without aftermarket bracket work, making the Sirrus X 2.0 a true do-everything fitness/gravel hybrid. Frameset Frame Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts — 3.5 lb (1.7 kg) Fork Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release Brakes Front Brake Tektro 2-piston hydraulic disc Rear Brake Tektro 2-piston hydraulic disc Drivetrain Rear Derailleur Shimano CUES 9-Speed Shift Levers Shimano CUES 9-Speed with Optical Gear Display Cassette Shimano CUES CS-LG300-9, 9-Speed, 11-46T Chain KMC eGlide for 11-Speed CUES Crankset Prowheel Alloy, XXS–XS: 165mm / S–M: 170mm / L–XL: 175mm, 42T Chainrings Narrow-Wide Steel 42T Bottom Bracket BSA, square-taper, 68mm Wheels & Tires Rims 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h Front Hub Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h Rear Hub Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h Spokes Stainless, 14g Front Tire Pathfinder Wirebead Fast Gravel 700x40C with proprietary GRIPTON® rubber compound Rear Tire Pathfinder Wirebead Fast Gravel 700x40C with proprietary GRIPTON® rubber compound Inner Tubes Standard 40mm SV 700x32-50 Cockpit Handlebars Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm Stem 3D-forged alloy, 31.8mm, 7-degree rise Grip Specialized Neutralizer, Body Geometry, locking grip Saddle Bridge Sport, Steel rails, 155/143mm SeatPost Alloy, 12mm offset, 2-bolt clamp, 27.2mm Seat Binder Bolt-type, 31.8mm Accessories Pedals Specialized platform Weight Weight 12.3 kg (27 lb, 1.9 oz) — size LG Product Info Product ID 263364 Sizes Available XXS, XS, S, M, L, XL (6 sizes) Fit Notes Rider-First Engineered™ Sizing Each frame size uses its own unique tube sizing — guarantees that every rider, regardless of frame size, gets the same world-class ride quality that Specialized builds into their performance bikes. Use the geometry table below to find your size: aim for a stack/reach ratio that matches your preferred riding position, and check stand-over height against your inseam. The Sirrus X 2.0 shares its frame geometry with the Sirrus X 3.0 — the only differences between the two are fork material, drivetrain, and weight. Component Sizing Crank Length XXS/XS: 165mm · S/M: 170mm · L/XL: 175mm Handlebar Width 680mm (all sizes) Stem Length XXS/XS: 60mm · S: 70mm · M: 80mm · L: 90mm · XL: 100mm Saddle Width XXS/XS/S: 155mm · M/L/XL: 143mm Seatpost Length XXS/XS/S: 300mm · M/L: 350mm · XL: 400mm Cockpit Geometry Stack (mm) XXS: 536 · XS: 555 · S: 563 · M: 593 · L: 608 · XL: 633 Reach (mm) XXS: 373 · XS: 388 · S: 393 · M: 398 · L: 402 · XL: 414 Head-Tube Length (mm) XXS: 121 · XS: 139 · S: 147 · M: 175 · L: 191 · XL: 217 Head-Tube Angle XXS: 69.5° · XS/S: 70° · M/L/XL: 71° Frame Geometry Seat-Tube Length (mm) XXS: 360 · XS: 395 · S: 440 · M: 470 · L: 510 · XL: 530 Seat-Tube Angle 73.5° (all sizes) BB Drop 70mm (all sizes) BB Height 288mm (all sizes) Chain-Stay Length 440mm (all sizes) Front-Center (mm) XXS: 606 · XS: 623 · S: 631 · M: 636 · L: 645 · XL: 665 Wheelbase (mm) XXS: 1036 · XS: 1053 · S: 1061 · M: 1067 · L: 1076 · XL: 1096 Top-Tube Length (horizontal, mm) XXS: 532 · XS: 552 · S: 560 · M: 574 · L: 582 · XL: 602 Bike Stand-Over Height (mm) XXS: 702 · XS: 725 · S: 755 · M: 785 · L: 815 · XL: 837 Fork Geometry Fork Length (full) 395mm (all sizes) Fork Rake/Offset 51mm (all sizes) Trail (mm) XXS: 79 · XS/S: 76 · M/L/XL: 69 Quick Reference — All Sizes Side-by-Side XXS Stack 536 · Reach 373 · HTA 69.5° · STA 73.5° · WB 1036 · ST 360 XS Stack 555 · Reach 388 · HTA 70° · STA 73.5° · WB 1053 · ST 395 S Stack 563 · Reach 393 · HTA 70° · STA 73.5° · WB 1061 · ST 440 M Stack 593 · Reach 398 · HTA 71° · STA 73.5° · WB 1067 · ST 470 L Stack 608 · Reach 402 · HTA 71° · STA 73.5° · WB 1076 · ST 510 XL Stack 633 · Reach 414 · HTA 71° · STA 73.5° · WB 1096 · ST 530