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We understand that fitness bikes can get a bad rap. Most of the time, they err on the side of value over performance, which leaves YOU feeling in between, and frankly, a little burned. But we're happy to say that our Sirrus is out to change that by providing the perfect blend of everyday efficiency with the performance you need to hit your fitness goals at speed. This Sirrus features a reliable set of components that are built to withstand years of daily abuse, like comfortable Body Geometry touchpoints and fuss-free mechanical V-brakes. You'll also find rack and fender mounts, so lugging your stuff around town will surely be a whole lot easier. *While this frame platform was designed from the ground up for all riders, some of the models feature gender-specific touchpoints.
- 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 straight blade steel fork provides a responsive ride, while the fender and rack mounts give you the option to install fenders and racks that can keep you dry and transport your gear around town.
- Women's Body Geometry touchpoints take the sting out of riding with their ergonomically designed, scientifically tested shapes.
Technical Specifications
FRAMESET
| FRAME | Specialized A1 Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, external cable routing, V-brake, quick-release, rack/fender mounts |
SUSPENSION
| FORK | Steel, V-brake, 1-1/8" steerer, QR, rack & fender mounts |
COCKPIT
| HANDLEBARS | Double-butted alloy, 5-degree backsweep, 25.4mm |
| STEM | 20-degree, 25.4mm clamp |
| TAPE | Specialized Body Geometry Women's XCT, lock-on |
| SADDLE | Specialized Aldia Sport, steel rails, 155mm |
| 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, top-swing, 31.8mm band clamp |
| REAR DERAILLEUR | Shimano Tourney TX, 7-speed |
| CASSETTE | Shimano HG200, 7-speed, 12-32t |
| CHAINRINGS | 48/38/28T |
| BOTTOM BRACKET | BSA, square-taper, 68mm |
| CHAIN | KMC X8 w/ Missing Link™, 8-speed |
WHEELS & TIRES
| RIMS | 700C rim brake, double-wall alloy, 22mm depth, 21mm internal width, 32h |
| 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 | Nimbus 2 - 700x32C, no reflective sidewall |
| REAR TIRE | Nimbus 2 - 700x32C, no reflective sidewall |
| INNER TUBES | Schrader valve, 40mm |
ACCESSORIES
| PEDALS | Specialized Body Geometry Fitness, platform, plastic |
* Specifications are subject to change without notice
Geometry
Sirrus - Geometry
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Crank Length | 165MM | 165MM | 170MM | 170MM | 170MM |
| Stem Length | 70mm | 70mm | 80mm | 100mm | 100mm |
| Seatpost Length | 300mm | 300mm | 350mm | 350mm | 350mm |
| Saddle Width | 155mm | 155mm | 155mm | 155mm | 155mm |
| Handlebar Width | 580mm | 580mm | 600mm | 600mm | 620mm |
| Reach | 372mm | 373mm | 383mm | 393mm | 393mm |
| Top Tube Length, Horizontal | 531mm | 537mm | 555mm | 573mm | 578mm |
| Stack | 536mm | 555mm | 580mm | 608mm | 624mm |
| Wheelbase | 1035mm | 1038mm | 1047mm | 1067mm | 1066mm |
| Chainstay Length | 440mm | 440mm | 440mm | 440mm | 440mm |
| Front Center | 605mm | 608mm | 617mm | 636mm | 636mm |
| BB Drop | 70mm | 70mm | 70mm | 70mm | 70mm |
| BB Height | 275mm | 275mm | 275mm | 275mm | 275mm |
| Seat Tube Angle | 73.5° | 73.5° | 73.5° | 73.5° | 73.5° |
| Head Tube Angle | 69.5° | 70° | 71° | 71° | 71.5° |
| Seat Tube Length | 360mm | 395mm | 440mm | 470mm | 510mm |
| Head Tube Length | 106mm | 124mm | 146mm | 176mm | 190mm |
| Bike Standover Height | 690mm | 715mm | 745mm | 775mm | 805mm |
| Fork Rake/Offset | 51mm | 51mm | 51mm | 51mm | 51mm |
| Fork Length, Full | 410mm | 410mm | 410mm | 410mm | 410mm |
| Trail | 75mm | 71mm | 65mm | 65mm | 62mm |
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