Sirrus Pro
Part No.  

Sirrus Pro

Part No.  
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Sirrus Pro
Overview
Technical Specifications
Geometry
Reviews
Ergonomic Fitness/Commute FIT MEETS FAST Every Sirrus® offers the speed and agility of a road racing bike, paired with enhanced ergonomics and the control of a flat handlebar. A simple, light and worry-free choice for anything from fitness-based training to commuting and event rides.

Inside Tech The front end of our Sirrus models has “user-friendly” written all over it: flat handlebars give you more control and easy maneuverability, wide-range gearing ensures confidence in varied terrain, BG Comfort grips reduce hand numbness and a proprietary FACT carbon fork with vibration-damping Zertz™ inserts smoothes out your ride.

  • Specialized FACT 9m carbon frame, Az1 construction, compact design, Zertz Inserts
  • Specialized FACT monocoque carbon fork, full carbon legs, crown and steerer w/ Speed Zertz, rack and fender fittings
  • Shimano 105 rear derailleur, long cage and R440 9-speed STI shifters
  • Crank Brothers Smarty pedals
  • Alex AS1, alloy triple wall rims, machined sidewalls w/ indicator grooves
  • Specialized forged alloy, 24/28 hole hubs, double sealed bearings, straight pull spokes, QR
  • Specialized All Condition Pro tires

Technical Specifications

DRIVETRAIN
CHAIN Shimano 105, 10-speed
BOTTOM BRACKET FSA MegaExo, integrated exterior cartridge bearings, alloy
CRANKSET FSA Gossamer MegaExo, 2-piece crankset
FRONT DERAILLEUR Shimano FD-R453 Tiagra for flat bars
SHIFT LEVERS Shimano R440, 9-speed STI
CHAINRINGS 50x39x30T
REAR DERAILLEUR Shimano 105, long cage
SUSPENSION
FORK Specialized FACT monocoque carbon fork, full carbon legs, crown and steerer w/ Speed Zertz, rack and fender fittings
WHEELS
FRONT HUB Specialized forged alloy, 24 hole, double sealed bearings, straight pull spokes, QR
REAR HUB Specialized forged alloy, 28 hole, double sealed bearings, straight pull spokes, cassette, QR
SPOKES Stainless 14g, straight-pull
FRONT TIRE Specialized All Condition Pro, 700x28c, aramid bead, 120TPI w/ Armadillo Elite
RIMS Alex AS1, alloy triple wall, machined sidewalls w/ indicator grooves
REAR TIRE Specialized All Condition Pro, 700x28c, aramid bead, 120TPI w/ Armadillo Elite
COCKPIT
SADDLE Body Geometry Avatar, microfiber cover, gel padding
STEM Specialized Comp-Set, 3D forged alloy, 4-bolt 31.8mm bar clamp, 4- position adjustable
HANDLEBARS Body Geometry Event Zertz, flat 6 degree bend, butted 6061 alloy, Zertz damper, 31.8 clamp
BRAKES
FRONT BRAKE 3D forged linear pull brakes w/ cartridge pads
BRAKE LEVERS Avid FR-5
REAR BRAKE 3D forged linear pull brakes w/ cartridge pads
ACCESSORIES
PEDALS Crank Brothers Smarty w/ reflector
FRAMESET
HEADSET Specialized Mindset, 1 1/8"" integrated threadless, sealed bearings, alloy 40mm cone
SEAT BINDER Specialized CNC, alloy
FRAME Specialized FACT 9m carbon, Az1 construction, compact design, Zertz Inserts

Geometry

Geometry Chart

- Geometry

XS S M L XL
  XS S M L XL
Handle-Bar Width 300mm 350mm 350mm 350mm 350mm
Reach 510mm 530mm 545mm 565mm 590mm
Stack 400mm 445mm 480mm 515mm 565mm
Wheelbase 580mm 580mm 580mm 580mm 580mm
Seat-Tube Length, B-B Center to Top 430mm 425mm 425mm 425mm 425mm
Head-Tube Length 170mm 170mm 175mm 175mm 175mm
Ground-Top 68mm 68mm 65mm 65mm 65mm
Top-Tube Length, Horizontal 76mm 75mm 74mm 73.5mm 73mm
Front-Center 135mm 150mm 175mm 205mm 240mm
Head-Tube Angle 595° 597° 600° 611° 626°
Stand-Over Height 90mm 100mm 100mm 110mm 120mm
Fork Rake 1015mm 1012mm 1016mm 1027mm 1042mm
Trail 715mm 745mm 782mm 814mm 855mm
Chain-Stay Length 50mm 50mm 50mm 50mm 50mm
Seat-Tube Angle 72° 63° 60° 56° 53°
B-B Drop 70mm 71.5mm 72mm 72.5mm 73mm

Reviews