MSRP | $1,500 | $1,799 |
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Where to Buy | — $1 At | — $1 At |
Category | Fitness | Fitness |
Weight | 23.7 lbs | |
Aluminum | Carbon | |
Fork | Specialized Future Shock 1.5 | Carbon |
Wheels | Aluminum | Aluminum |
Wheel Size | 700c | 700c |
Brakes | Hydraulic Disc | Hydraulic Disc |
Groupset | Deore | Deore |
Drivetrain | 1 × 11 | 1 × 10 |
Suspension | Hardtail | Rigid |
Front Travel | 20mm | - |
Brand Site | ||
Summary | The Specialized Sirrus X 4.0 is a 700c aluminum frame fitness bike with upper mid-range components and hydraulic disc brakes. |
Based on frame geometry and build specs.
Frame | Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts BB Standard: BSA, 68mm, Threaded Colors: Gloss Sky Blue / Tarmac Black / Satin Black Reflective; Gloss Smoke / Cool Grey / Satin Black Reflective | BB Standard: BSA, 68mm, Threaded Colors: Gloss Sky Blue / Tarmac Black / Satin Black Reflective; Gloss Smoke / Cool Grey / Satin Black Reflective |
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Fork | Carbon Monocoque, 12x100mm flat thru-axle, flat mount disc, Future Shock 1.5 | Carbon, hidden fender mounts, flat mount disc, 100x5mm thru-skew |
Bottom Bracket | Threaded BSA 68mm, 24mm spindle | |
Stem | Future Stem, Comp | Size: XS, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: S, M, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length; Size: L, XL, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length |
Handlebar | Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm | Size: XS, S, Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 600mm width; Size: M, L, XL, Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 660mm width |
Saddle | Bridge Comp, Hollow Cr-mo rails, 155/143mm | Bontrager H1 |
Seatpost | Alloy, 2-bolt, 14mm offset, 27.2mm | Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
Pedals | Specialized Body Geometry Fitness, platform, plastic | Bontrager City pedals |
Grips | Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
Rear Derailleur | Shimano Deore M5100, SGS, 11-speed | Shimano Deore M5120, long cage |
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Crank | Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring, 40T | Size: XS, S, Prowheel alloy, 42T narrow-wide ring, 170mm length; Size: M, L, XL, Prowheel alloy, 42T narrow-wide ring, 175mm length |
Shifters | Shimano Deore M5100, 11-speed | Shimano Deore M4100, 10 speed |
Cassette | Shimano Deore M5100, 11-speed, 11-42t | Shimano Deore M4100, 11-46, 10 speed |
Chain | KMC X11, 11-speed w/ Missing Link™ | KMC X10, 10 speed |
Brakes | Front: Shimano BR-MT200, hydraulic disc, 160mm, Rear: Shimano BR-MT200, hydraulic disc, 160mm | Promax DSK-927 hydraulic disc, flat mount, 160mm rotor |
Rims | 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h | Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, Presta valve |
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Spokes | Stainless, 14g | |
Front Hub | Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24H | Formula CL-51 alloy, 100x5mm QR |
Rear Hub | Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28H | Formula CL-52 alloy, 135x5mm QR |
Tires | Front: Pathfinder Sport, 700x38mm, Rear: Pathfinder Sport, 700x38mm | Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40mm |
Disc Rotors | Shimano RT10, CenterLock, 160 mm |