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The Sirrus with Fitness Geometry provides flat bar handling so you can ride faster on longer rides, yet be stable and quick in town. The 24-speed drivetrain with wide gearing allows top speed with hill climbing capabilities, too.

  • Specialized A1 Premium Aluminium frame w/ rack/fender mount and wide tyre clearance
  • Straight blade steel fork w/ fender mounts provides durability in all conditions
  • Specialized Nimbus 700x32c tyres w/ Flak Jacket flat tyre protection
  • Specialized Body Geometry Targa grips for comfortable handling on the bars
  • Die-cast alloy V-brake for no-hassle braking performance
  • Shimano Altus, 8-speed derailleur for clean shifting across wide gear range
  • Body Geometry Targa Sport saddle w/ steel rails for all conditions comfort
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FRAME Specialized A1 Premium Aluminium, fully manipulated butted tubing, integrated lower bearing, fender/rack eyelets
FORK Steel, straight blade, rack/fender mounts
HEADSET 1-1/8″ FSA integrated cartridge lower, external sealed upper bearings
STEM Ahead stem, 20-degree rise, Melt-forged alloy, 4-bolt, 25.4mm clamp
HANDLEBARS Specialized flat, alloy, 6-degree backsweep, 25.4mm
TAPE Specialized Body Geometry Targa, closed end
FRONT BRAKE Alloy V-brake, linear pull, w/ alloy lever
REAR BRAKE Alloy V-brake, linear pull, w/ alloy lever
FRONT DERAILLEUR Shimano FD-M191, top swing, dual-pull
REAR DERAILLEUR Shimano Altus, 8-speed
SHIFT LEVERS Shimano EZ Fire, 8-speed
CASSETTE Shimano, 8-speed, 11-32
CHAIN KMC X8, 8-speed, reusable Missing Link
CRANKSET Shimano Altus, 8-speed triple, w/ chainguard
BOTTOM BRACKET Square taper, cartridge bearings
PEDALS Nylon flat
RIMS 700c, alloy double-wall, CNC sidewalls, 32h
FRONT HUB Double-sealed, QR, 32h
REAR HUB Double-sealed, QR, 32h
SPOKES Stainless, 14g, w/ brass nipple
FRONT TYRE Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x32c
REAR TYRE Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x32c
INNER TUBES Standard Schrader valve
SADDLE Body Geometry Targa Sport, steel rails, 155mm
SEATPOST Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware
SEAT BINDER Alloy, 31.8mm

Specifications subject to change without notice.


Seat-Tube Length, B-B Centre to Top 395mm 440mm 485mm 530mm 570mm
Top-Tube Length, Horizontal 555mm 570mm 580mm 600mm 620mm
B-B Drop 70mm 70mm 70mm 70mm 70mm
Chain-Stay Length 445mm 445mm 445mm 445mm 445mm
Seat-Tube Angle 73.5° 73.25° 73.5° 73° 73°
Head-Tube Angle 70.5° 71° 71.5° 72° 72°
Fork Rake 51mm 51mm 51mm 51mm 51mm
Trail 70mm 67mm 63mm 60mm 60mm
Front-Centre 621mm 629mm 637mm 647mm 667mm
Wheelbase 1056mm 1065mm 1073mm 1082mm 1103mm
Standover Height 716mm 750mm 786mm 821mm 859mm
Head-Tube Length 130mm 150mm 165mm 190mm 225mm
Handle-Bar Width 580mm 580mm 600mm 600mm 620mm
Stem Length 80mm 80mm 80mm 100mm 100mm
Crank Length 170mm 170mm 170mm 170mm 175mm
Seat-Post Length 300mm 300mm 350mm 350mm 350mm

Tech Features

WHAT High-performing, experience-specific drivetrains that evolve through the line.
WHY To create high-quality, durable drivetrains that provide the most efficient, intuitive, and smoothest experience for the rider at each level–with an emphasis on wide gear ranges.
HOW As you move through the Sirrus line, the experience changes: the gears move with you. The base model accommodates all riders with a triple crankset with a wide gear range for easier climbing, while the top end has 1×11 gearing for ultimate performance.
WHAT Body Geometry ergonomic grips and saddles designed to work perfectly for fitness and commute riding.
WHY To optimise comfort and blood flow at these key contact points, while increasing efficiency.
HOW Ample padding and patented Body Geometry design assure maximum blood flow to sensitive areas. Targa grips use triple-density rubber.
WHAT Newly designed, flat bar-specific geometry with lower standover, slacker seat tube angle, and longer reach.
WHY To create the most efficient and comfortable fitness-riding position right out of the box, without major adjustments or swapping components.
HOW Body Geometry Fit professors analyzed fitness riders and found that a longer toptube puts riders in the most comfortable, yet efficient position. The new design closely resembles the geometry of a traditional road bike, and provides confidence and stability while allowing your arms and shoulders to loosen in a more ergonomic position. Slackening the seat tube allows better alignment of your knees over the pedals, increasing efficiency and comfort while pedalling.
WHAT New FACT 8R carbon disc frame with true Fitness Geometry and Plug and Play fender compatibility.
WHY To provide a compliant, comfortable bike to riders looking for road bike speed with flat handlebar fit and control, plus the versatility of all-weather riding.
HOW Carbon fibre allows engineers to create a lightweight frame with additional compliance, leading to a fast, confident ride. The Plug and Play fenders make rainy day riding a breeze, with easy installation and sleek aesthetics.



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