Disclosure : This site contains affiliate links to products. We may receive a commission for purchases made through these links.

Specialized Sirrus 1.0 Sports Hybrid Bike 2021

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 an alloy frame and steel fork construction as well as reliable Shimano components that are built to withstand years of daily abuse on the world’s pavement. 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.

Lightweight A1 Alloy frame with clean internal cable routing delivers a bike that is 1.1lb (.5kg) lighter than previous version.
Reflective graphics on frame and tires for maximum visibility.
Upright position with Body Geometry touchpoints for comfort and control.

TECHNICAL SPECIFICATIONS

FRAMESET

FRAME
Specialized A1 Premium Aluminum Fitness Geometry Butted tubing Internal Cable Routing V-Brake Quick-Release Plug + Play rack/fender mounts

SUSPENSION

FORK
Hi-Ten steel V-Brake Plug + Play fender mounts low rider rack mounts quick-release

COCKPIT

HANDLEBARS
Double-butted alloy 5-degree backsweep 25.4mm

STEM
10-degree rise 25.4mm clamp

TAPE
Specialized Body Geometry XCT lock-on

SADDLE
Bridge Sport Steel rails 155/143mm

SEATPOST
Alloy 12mm offset 2-bolt clamp 27.2mm

SEAT BINDER
Bolt-type 31.8mm

BRAKES

FRONT BRAKE
V-brake linear pull

REAR BRAKE
V-brake linear pull

DRIVETRAIN

SHIFT LEVERS
Shimano EF500 7-speed

FRONT DERAILLEUR
Shimano Tourney FD-TY710

REAR DERAILLEUR
Shimano Altus M310

CASSETTE
Shimano HG200 7-speed 12-32t

CRANKSET
Shimano Tourney 3-piece 46/30T

CHAINRINGS
46/36/28T w/chainguard

BOTTOM BRACKET
BSA square-taper 68mm

CHAIN
KMC X8 w/ Missing Link™

WHEELS & TIRES

RIMS
700C rim brake double-wall alloy 22mm depth 21mm internal width rim brake

FRONT HUB
Alloy loose ball bearings quick-release 32h

REAR HUB
Alloy loose ball bearings quick-release 7-speed freehub 32h

SPOKES
Stainless 14g

FRONT TIRE
RoadSport Wire bead Blackbelt/Endurant Casing 700x32c

REAR TIRE
RoadSport Wire bead Blackbelt/Endurant Casing 700x32c

INNER TUBES
Schrader valve 40mm

ACCESSORIES

PEDALS
Specialized Body Geometry Fitness platform plastic

*Specifications are subject to change without notice