Specialized Sirrus 4.0 2021 - Hybrid Sports Bike
You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features a super light Aluminum Alloy and carbon fiber construction, as well as reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus.
Key Features:
- Carbon fact 9 frame and fork saves over 1.4 pounds (.6kg) and is a piece of art all unto itself.
- Through axle hub connection for positive wheel alignment and no rub Disc brakes.
- Wide range 2x9 Shimano Sora Road components for intuitive and precise shifting.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | Specialized FACT 9r carbon, Fitness Geometry, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts |
Fork | Specialized FACT 9r carbon, 12x100mm thru-axle, flat-mount disc, Plug + Play fender mounts |
Stem | Specialized, 3D-forged alloy, 4-bolt, 7-degree rise |
Bars | Double-butted alloy, 9-degree backsweep, 31.8mm |
Front Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 160mm |
Rear Brake | Tektro HD-R280, hydraulic disc, resin pads, flat-mount, 140mm |
Brake Lever | microSHIFT, 9-speed |
Front Mech | microSHIFT R9, 9-speed, 31.8mm clamp |
Rear Mech | Shimano Sora, 9-speed |
Shifters | microSHIFT, 9-speed |
Speed | 18 |
Rims | 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 28h |
Front Hub | Alloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 28h |
Rear Hub | Alloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h |
Spokes | Stainless, 14g |
Front Tyre | RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c |
Rear Tyre | RoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c |
Seat Post | Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
Saddle | Specialized Power, hollow steel rails, 155/143mm |
Chainset | 2-piece, forged arms, 24mm spindle, steel chainrings w/ chainguard |
Bottom Bracket | BSA for 24mm spindle |
Chain | KMC X9, 9-speed w/ Missing Link™ |
Cassette | Shimano Sora, 9-speed, 11-34t |
Pedals | Basic Resin Flat |
Specialized Sirrus 2021 Size Chart
Frame Size | Height (cm) | Height (in) |
XXS | 142 - 150 | 4' 8" - 4' 11" |
XS | 150 - 158 | 4' 11" - 5' 2" |
S | 155 - 165 | 5' 1" - 5' 5" |
M | 165 - 175 | 5' 5" - 5' 9" |
L | 175 - 183 | 5' 9" - 6' 0" |
XL | 183 - 193 | 6' 0" - 6' 4" |
XXL | 193 - 198 | 6' 4" - 6' 6" |
What size frame do I need if I am between sizes? - read here
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