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Fitness is not a fad, and the Sirrus Pro proves you're taking your fitness journey seriously. It features many of the same technologies that are use in our top-tier road bikes, but conforms them into the realm of fitness.
We started with a high quality FACT 9r carbon fiber construction that's lightweight and extremely responsive, not only making the Sirrus a better climber, but also making it easier to carry up the stairs after your commute. Onto what we like to think is the best part of the new Sirrus, though, our new Future Shock. Essentially, it's a piston in the head tube with 20mm of travel. We developed this technology in partnership with McLaren Applied Technologies, and the result of this relationship are a host of drastic performance improvements, namely in the vertical compliance department. Without giving a physics lecture, we found that is improves smoothness, speed, and comfort in one fell swoop.
Then there's the super wide range of gears that come at the hands of the legendary Shimano Ultegra rear derailleur, plus all the comfort that follows our scientifically tested and engineered Body Geometry components. So as you push yourself to reach your goals or simply get where you're going, you'll feel more connected to your bike than ever, leaving you feeling that you have the perfect partner on your path to health and wellbeing.
|BOTTOM BRACKET||Praxis, Threaded bearings|
|CHAIN||KMC X11, 11-speed w/ Missing Link™|
|CRANKSET||Praxis Zayante, BB30|
|SHIFT LEVERS||microSHIFT, flat bar road shifters, 11-speed|
|FRONT DERAILLEUR||microSHIFT Centos, 11-speed, braze-on|
|CASSETTE||Shimano 105, 11-speed, 11-32t|
|REAR DERAILLEUR||Shimano Ultegra R8000, Shadow Design, 11-speed|
|FORK||Specialized FACT 9r carbon, 12x100mm thru-axle, flat-mount disc, Plug + Play fender mounts|
|SADDLE||Specialized Phenom, hollow Ti rails, 143mm|
|SEAT BINDER||Integrated w/ frame|
|SEATPOST||S-Works CG-R, FACT carbon fiber, single-bolt, 27.2mm|
|HANDLEBARS||Double-butted alloy, 9-degree backsweep, 31.8mm|
|STEM||Specialized, 3D-forged alloy, 4-bolt, 7-degree rise|
|FRONT HUB||Alloy, 6-bolt disc, sealed cartridge bearings, 12x100mm thru-axle, 24h|
|REAR HUB||6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm spacing, 28h|
|INNER TUBES||Presta, 48mm valve|
|RIMS||700C disc, double-wall alloy|
|FRONT TIRE||Espoir Sport Reflect, 60 TPI, wire bead, double BlackBelt protection, 700x30mm|
|REAR TIRE||Espoir Sport Reflect, 60 TPI, wire bead, double BlackBelt protection, 700x30mm|
|FRONT BRAKE||TRP Flow Set Control, carbon lever, hydraulic disc, resin pads, flat-mount, 160mm|
|REAR BRAKE||TRP Flow Set Control, carbon lever, hydraulic disc, resin pads, flat-mount, 140mm|
|FRAME||Specialized FACT 9r carbon, Fitness Geometry, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts|
|Top Tube Length, Horizontal||554mm||573mm||580mm||603mm||628mm|
|Seat Tube Angle||73.5°||73.5°||73.5°||73.5°||73°|
|Head Tube Angle||70°||71°||71.5°||72°||72°|
|Seat Tube Length||416mm||452.8mm||483mm||533mm||563mm|
|Head Tube Length||143mm||169mm||186mm||223mm||246mm|
|Bike Standover Height||756mm||788mm||813mm||849mm||875mm|
|Fork Length, Full||390mm||390mm||390mm||390mm||390mm|