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IF YOU'RE ONLY GOING TO HAVE ONE BIKE the Sirrus is it. Built for the best balance…
IF YOU'RE ONLY GOING TO HAVE ONE BIKE the Sirrus is it. Built for the best balance of speed and control, every FACT carbon or A1 Premium Aluminum Sirrus combines the low weight, high comfort and easy speed of our performance road bikes with the enhanced ergonomics and stability of a flat handlebar.
The A1 aluminum frame features seamlessly integrated carbon seatstays, with vibration-absorbing Zertz inserts.
The lightweight Sirrus carbon fork provides ultra-precise steering.
The stiff and strong 3D-forged Comp-Set alloy stem joins perfectly with the large-diameter handlebar, giving you absolute control.
Body Geometry Comfort Bell grips prevent hand pain and tingling fingers and feature an integrated bell.
The scientifically proven Body Geometry Sonoma saddle reduces pressure on your soft parts.
FRAME
Specialized A1 Premium Aluminum, fully manipulated tubing, compact design, integrated headset, FACT carbon seatstays w/ Zertz inserts
HEADSET
Specialized Mindset, 1-1/8"" integrated threadless, steel cage bearings, 40mm alloy cone
SEAT BINDER
Specialized alloy 31.8mm
FORK
Specialized FACT carbon fork legs and crown, aluminum steerer w/ Zertz inserts
FRONT TIRE
Specialized All Condition Sport, 700x28c, 60TPI w/ Flak Jacket
REAR TIRE
Specialized All Condition Sport, 700x28c, 60TPI w/ Flak Jacket
INNER TUBES
Specialized standard presta tube
RIMS
Alex S500, sleeve joint, CNC sidewalls, 32h
FRONT HUB
Specialized sealed, 32h, QR
REAR HUB
Specialized sealed, 32h, cassette, QR
SPOKES
Stainless 14g
FRONT DERAILLEUR
Shimano Nexave
REAR DERAILLEUR
Shimano Sora, long cage
SHIFT LEVERS
Shimano EF-50, EZ Fire
CASSETTE
Shimano Sora, 8-Speed 12-25t
CHAIN
KMC Z-51, 8-speed
CRANKSET
Sugino Triple
CHAINRINGS
48 x 38 x 28t
BOTTOM BRACKET
Sealed cartridge, square taper, 68mm x 113mm
STEM
Specialized Comp-Set, 3D forged alloy, 4-bolt 31.8mm bar clamp, 4- position adjustable
HANDLEBARS
Specialized Event, A1 Premium Aluminum, 580mm width, 31.8mm
GRIPS
Body Geometry Comfort II, triple density gel w/ integrated bell
SADDLE
Body Geometry Sonoma, 155mm width
SEATPOST
Alloy 2-bolt, 27.2mm
FRONT BRAKE
Forged 6061 alloy, 85mm linear pull, cartridge pads
REAR BRAKE
Forged 6061 alloy, 85mm linear pull, cartridge pads
BRAKE LEVERS
Shimano EF-50, EZ Fire, integrated w/ shift lever
PEDALS
Silver cage, black body, w/ toe clip and strap
* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.
XS | S | M | L | XL | |
---|---|---|---|---|---|
Ground-Top | 68mm | 68mm | 65mm | 65mm | 65mm |
Seat-Tube Angle | 71° | 62° | 58° | 55° | 52° |
Head-Tube Angle | 606° | 608° | 611° | 622° | 637° |
Chain-Stay Length | 51mm | 51mm | 51mm | 51mm | 51mm |
Top-Tube Length, Horizontal | 76mm | 75mm | 74mm | 73.5mm | 73mm |
Front-Center | 135mm | 155mm | 185mm | 215mm | 250mm |
Handle-Bar Width | 0mm | 0mm | 0mm | 0mm | 0mm |
Seat-Tube Length, B-B Center to Top | 430mm | 425mm | 425mm | 425mm | 425mm |
Fork Rake | 1026mm | 1023mm | 1027mm | 1038mm | 1053mm |
B-B Drop | 70mm | 71.5mm | 72mm | 72.5mm | 73mm |
Stack | 400mm | 445mm | 480mm | 515mm | 565mm |
Reach | 520mm | 540mm | 555mm | 575mm | 600mm |
Trail | 719mm | 752mm | 785mm | 817mm | 858mm |
For safety warning please refer to the documentation in the Manual Downloads section of this page.
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