Specialized Men's Sirrus Single Speed - 2019

Specialized Men's Sirrus Single Speed
Satin Gloss Black/Black/Back Reflective
Please select options


The Men's Single Speed Sirrus is the perfect blend of comfort and ease of use. No need to worry about shifting, just hop on and start cruisin'.

It's constructed from a durable, reliable, and lightweight A1 Premium Aluminum, and it features a reliable set of components that are built to withstand years of daily abuse, like comforting Body Geometry touch points that are sure to take the sting out of long rides. You'll also find rack and fender mounts, so lugging your stuff around town just got a whole lot easier. Complacency just met its match.

- Working with our Body Geometry team, we designed a frame that strikes the optimal balance between comfort and efficiency. The A1 Premium Aluminum construction pairs weight savings with rugged durability, while the rack, fender, and disc mounts give you an incredibly versatile package.

- A steel, straight blade fork provides a responsive ride, while the fender and rack mounts give you the option to install rain-fighting fenders and racks that can transport your gear around town.

- The 700x30 Espoir Sport tires offer superior flat protection.


Frame Specialized A1 Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts
Fork Steel, V-brake, 1-1/8" steerer, QR, rack/fender mounts
Rims/Wheels 700C rim brake, double-wall alloy, 22mm depth, 21mm internal wdith, rim brake
Hubs Front: Loose ball bearings, 9x100mm spacing, 32h
Rear: Fixed gear, loose ball bearings, 10x120mm spacing, 32h
Spokes Stainless, 14g
Tires Espoir Sport, 60 TPI, wire bead, double BlackBelt protection, 700x30mm
Crankset 3-piece square-taper, forged alloy
Chainrings 42T
Bottom Bracket BSA, square-taper, 68mm
Handlebars Double-butted alloy, 5-degree backsweep, 25.4mm
Tape/Grips Specialized Neutralizer, Body Geometry, locking grip
Stem Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Brakes V-brake, linear pull
Pedals Platform, plastic
Saddle Specialized Canopy Sport, steel rails, 155mm
Seat Post Alloy, 12mm offset, 2-bolt clamp, 27.2mm

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Satin Gloss Black/Black/Back Reflective / Small 888818520343 90919-7702 SIR37220532S
Satin Gloss Black/Black/Back Reflective / Medium 888818520664 90919-7703 SIR37302522M
Satin Gloss Black/Black/Back Reflective / Large 888818520558 90919-7704 SIR37172813L
Satin Gloss Black/Black/Back Reflective / X-Large 888818520374 90919-7705 SIR38372429L
Satin Gloss Black/Black/Back Reflective / XX-Large 888818520015 90919-7706 SIR39765831L