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 was designed for the ultimate ease of use, which is why it has a single gear that removes all the fuss and maintenance of shifters and derailleurs. No need to worry about shifting, just hop on and start cruisin'. And while you’re at it, the comfortable Body Geometry touchpoints are sure to take the sting out of long rides, while rack and fender mounts give you the option to lug your stuff around town on the bike instead of on your back. *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 SL 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.
- Body Geometry touchpoints take the sting out of riding with their ergonomically designed, scientifically tested shapes.
|FRAME||Specialized A1 SL 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|
|FRONT HUB||Loose ball bearings, 9x100mm spacing, 32h|
|REAR HUB||Fixed gear, loose ball bearings, 10x120mm spacing, 32h|
|RIMS||700C rim brake, double-wall alloy, 22mm depth, 21mm internal width, 32h|
|INNER TUBES||Schrader valve, 40mm|
|FRONT TIRE||Espoir Sport, 60 TPI, wire bead, double BlackBelt protection, 700x30mm|
|REAR TIRE||Espoir Sport, 60 TPI, wire bead, double BlackBelt protection, 700x30mm|
|CRANKSET||3-piece square-taper, forged alloy|
|BOTTOM BRACKET||BSA, square-taper, 68mm|
|CASSETTE||SunRace, freewheel, 17t|
|CHAIN||CHAIN, KMC,Z1.WIDE.NPNP.VN,NP/NP,SINGLE SPEED,1/2"x1/8",W/O MISSING LINK|
|FRONT BRAKE||V-brake, linear pull|
|REAR BRAKE||V-brake linear pull|
|HANDLEBARS||Double-butted alloy, 5-degree backsweep, 25.4mm|
|TAPE||Specialized Neutralizer, Body Geometry, locking grip|
|STEM||10-degree rise, 25.4mm clamp|
|SADDLE||Specialized Canopy Sport, steel rails, 155mm|
|SEATPOST||Alloy, 12mm offset, 2-bolt clamp, 27.2mm|
|SEAT BINDER||Bolt-type, 31.8mm|
This product was added to our catalog on March 5, 2019