2026 Specialized Sirrus X 3.0
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Sirrus X 3.0
Fitness / Gravel Bike · Aluminum · Shimano Cues 11-Speed · 1.6 lb lighter than 2.0
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.
A1 Premium Aluminum Frame
Specialized A1 Premium Aluminum frame with butted tubing and internal cable routing — Specialized's mid-tier aluminum that's both lightweight and durable, with the cables tucked inside the frame for a clean look, protection from the elements, and reduced cable rub. The butted tubing reduces weight in low-stress areas while keeping strength where it matters.
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.
1.6 lb Lighter Than Sirrus X 2.0
Significant weight savings over the previous-generation Sirrus X 2.0 — the redesigned A1 alloy frame and added A1 alloy fork drop 1.6 lb (0.8 kg) of weight, making the Sirrus X 3.0 faster on climbs, more responsive on the flats, and easier to handle in technical terrain than its predecessor.
A1 Alloy Fork
A1 Premium Aluminum fork with flat-mount disc and Plug + Play fender mounts plus low-rider rack mounts — replaces the rigid fork on the 2.0 with a purpose-built gravel-touring fork that adds high-speed control and the ability to mount a rack or fenders for commuting.
Wide 700x40c Pathfinder Tires
Wide 700x40c Pathfinder tires — ideal for mastering variable terrain from smooth pavement to chunky gravel, providing traction and comfort off the beaten path without sacrificing efficiency on the road. Wirebead construction keeps the price point accessible while still delivering the tread design Specialized uses on its higher-end tubeless-ready setups.
Shimano Cues 11-Speed Drivetrain
Wide-range 1x11 Shimano Cues drivetrain with an 11-50T cassette gives excellent range on any road — single chainring up front simplifies shifting, reduces weight, and cuts maintenance compared to a double or triple crankset, while the massive 11-50T range covers steep climbs and fast descents without compromise.
Tektro Hydraulic Disc Brakes
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.
Premium Two-Piece Crankset
Prowheel Alloy two-piece crankset — premium construction that pairs with the hydraulic disc brakes for enhanced braking power and durability in tough conditions, and the two-piece design holds up better to hard pedaling loads than a traditional three-piece square-taper crankset.
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.
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 3.0 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
Fork
A1 Premium Aluminum, 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 RD-U6000, 11-Speed
Shift Levers
Shimano Cues SL-U6000-11R, 11-Speed, Right
Cassette
Shimano Cues CS-LG400-11, 11-Speed 11-50T
Chain
KMC eGlide for 11-Speed CUES
Crankset
Prowheel Alloy two-piece, XXS–XS: 165mm / S–M: 170mm / L–XL: 175mm, 42T
Chainrings
Narrow-Wide Steel 42T
Bottom Bracket
BB68+, BSA24, 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, Shimano 11-speed Freehub, 6 Bolt Disc, 32H, 10mm Axle, 135mm Spacing
Spokes
Stainless, 14g
Front Tire
Pathfinder Wirebead Fast Gravel 700x40C
Rear Tire
Pathfinder Wirebead Fast Gravel 700x40C
Inner Tubes
700x32-50mm, 40mm Presta valve
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
11.07 kg (24 lb, 6.5 oz) — size LG
Product Info
Product ID
296261
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.
Component Sizing
Crank Length
XXS/S: 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
Shipping Policy
Components:
All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 2-5 business days of purchase.
Bicycles:
Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.
Riding Gear & Apparel:
Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 2-5 business days.
Returns & Exchanges:
If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.
For full details, please see our Refund Policy before initiating a return.
