Sirrus X 4.0
A 700c aluminum frame fitness bike with upper mid-range components and hydraulic disc brakes.
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MSRP | $1,500 |
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Frame | Aluminum |
Suspension | Hardtail, 20mm |
Fork | Specialized Future Shock 1.5 |
Wheels | 700c Aluminum |
Drivetrain | 1 × 11 |
Groupset | Deore |
Brakes | Hydraulic Disc |
For This Bike
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full Sirrus X model range
View ComparisonMay 2022 · Stu Kerton
Hybrid do-it-all with a bit of edge and attitude, just as happy around town as it is on the byways
Capable on the gravel and road
Good spread of gears
Excellent hydraulic brakes
Reflective detailing is eye-catching
Flat bar makes filtering through urban traffic trickier
Mar 2020
Smooth, fast, and utilitarian—this commuter has it all.
Future Shock in the head tube smooths the ride
Plenty of go-fast and hill-climbing gearing
Part smooth/part knobby, 38mm-wide tires
There are more affordable commuter/fitness options out there
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 |
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Fork | Carbon Monocoque, 12x100mm flat thru-axle, flat mount disc, Future Shock 1.5 Travel: 20mm |
Bottom Bracket | Threaded BSA 68mm, 24mm spindle |
Stem | Future Stem, Comp |
Handlebar | Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm |
Saddle | Bridge Comp, Hollow Cr-mo rails, 155/143mm |
Seatpost | Alloy, 2-bolt, 14mm offset, 27.2mm Type: Rigid |
Pedals | Specialized Body Geometry Fitness, platform, plastic |
Rear Derailleur | Shimano Deore M5100, SGS, 11-speed |
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Crank | Forged aluminum arms, 2-piece, 24mm spindle, Narrow-wide Aluminum chainring, 40T |
Shifters | Shimano Deore M5100, 11-speed |
Cassette | Shimano Deore M5100, 11-speed, 11-42t |
Chain | KMC X11, 11-speed w/ Missing Link™ |
Brakes | Front: Shimano BR-MT200, hydraulic disc, 160mm, Rear: Shimano BR-MT200, hydraulic disc, 160mm Type: Hydraulic Disc |
Rims | 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h |
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Spokes | Stainless, 14g |
Front Hub | Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x100mm spacing, 24H |
Rear Hub | Alloy, Center Lock disc, high-low flange, sealed cartridge bearings, 12x142mm spacing, 28H |
Tires | Front: Pathfinder Sport, 700x38mm, Rear: Pathfinder Sport, 700x38mm |
Last updated November 8
Not listed for 137 days