Offering an unprecedented combination of comfort, efficiency, and nimble handling, the Sirrus X excels on pavement, dirt, and any terrain in between.SMOOTH, COMFORTABLE, AND EFFICIENT: Sirrus X provides the smoothest ride in its class. With bigger, confidence-inspiring tires, a slightly more upright riding position, and a super intuitive one-by drivetrain. RIDER-FIRST ENGINEERED: Like all Specialized performance bikes, the geometry of each frame is uniquely crafted. This means that for every frame, each tube size is specifically selected to achieve the optimal balance of rigidity, weight, and responsiveness to ensure that no matter what size you're riding, you will experience the world's best ride. NIMBLE: Class-leading light-weight, exceptional pedaling efficiency, and steering precision merge for confident, nearly telepathic handling characteristics. FEATURES
Lightweight A1 Alloy frame with clean internal cable routing, 3.5lbs (1.7kg) lighter than our Crosstrail Hydro model.Maximum control through intuitive shifting with 1x8 wide range gearing, and powerful hydraulic disc brakes.Float over rough terrain with fast rolling Specialized Pathfinder 42c tires featuring proprietary Gripton rubber compound.
| Crank Length | 165 | 165 | 170 | 170 | 170 | 170 | 175 | 175 | 175 | 175 | 175 | 175 |
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| Handlebar Width | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 | 680 |
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| Stem Length | 60 | 60 | 70 | 70 | 80 | 80 | 90 | 90 | 100 | 100 | 110 | 110 |
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| Saddle Width | 155 | 155 | 155 | 155 | 143 | 143 | 143 | 143 | 143 | 143 | 143 | 143 |
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| Seatpost Length | 300 | 300 | 300 | 300 | 350 | 350 | 350 | 350 | 400 | 400 | 400 | 400 |
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| Stack | 580 | 600 | 625 | 650 | 680 | 710 |
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| Reach | 350 | 365 | 380 | 395 | 410 | 425 |
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| Head-Tube Length | 107 | 128 | 151 | 176 | 208 | 237 |
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| Head-Tube Angle | 69.5 | 69.5 | 70 | 70.5 | 70.5 | 71 |
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| B-B Height | 268 | 268 | 268 | 268 | 268 | 268 |
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| B-B Drop | 80 | 80 | 80 | 80 | 80 | 80 |
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| Trail | 76 | 76 | 72 | 69 | 69 | 66 |
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| Fork Length (full) | 395 | 395 | 395 | 395 | 395 | 395 |
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| Fork Rake/Offset | 51 | 51 | 51 | 51 | 51 | 51 |
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| Front-Center | 597 | 619 | 637 | 656 | 681 | 700 |
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| Chain-Stay Length | 440 | 440 | 440 | 440 | 440 | 440 |
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| Wheelbase | 1024 | 1047 | 1065 | 1084 | 1109 | 1128 |
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| Top-Tube Length (horizontal) | 521 | 547 | 568 | 590 | 614 | 644 |
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| Bike Stand-Over Height | 703.3 | 748.3 | 780.5 | 807.1 | 847.7 | 872.5 |
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| Seat-Tube Length | 355 | 416 | 453 | 483 | 533 | 563 |
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| Seat-Tube Angle | 74 | 73.5 | 73.5 | 73.5 | 73.5 | 73 |
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- SeatPost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm
- Seat Binder: Bolt-type, 31.8mm
- Saddle: Bridge Sport, Steel rails, 155/143mm
- Handlebars: Double-butted alloy, 5-degree backsweep, 25.4mmStemAlloy, 25.4mm, 10deg.
- Tape: Specialized Neutralizer, Body Geometry, locking grip
- Frameset: SWATFrame2020 Sirrus X A1 Disc
- Fork: 2020 Sirrus X Steel DiscBrakes
- Front Brake: Lee Chi, Mechanical Disc, 160
- Rear Brake: Lee Chi, Mechanical Disc, 160
- Chainrings: 34T
- Cassette: microSHIFT CS-H074, 12-40t, 7-Speed
- Crankset: PROWHEEL, Alloy, 165mm
- Chain: KMC X8 w/ Missing Link
- Rear Derailleur: Shimano Acera RD-M3020, 7-Speed
- Shift Levers: Shimano Altus SL-M315-7R, 7-Speed
- Bottom Bracket: Square-tapered, 68mmWheels & tires
- Rims: 700C disc brake, double-wall alloy, 22mm depth, 21mm internal widthRear HubAlloy, 6-bolt disc, 7-speed freehub, loose ball bearing, quick-release, 32h
- Front Hub: Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h
- Front Tire: Pathfinder Sport, 700x42mm
- Rear Tire: Pathfinder Sport, 700x42mmSpokesStainless, 14g
- Inner Tubes: Standard 40mm SV 700x32-50
- Pedals: Specialized Body Geometry Fitness, platform, plastic
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