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2026 Specialized

Sirrus X 4.0

A 700c aluminum frame fitness bike with mid-range components and shimano hydraulic disc brakes.
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Manufacturer Price

$1,399
FrameAluminum
SuspensionHardtail, 20mm
ForkSpecialized Future Shock 1.5
Wheels700c Aluminum
Drivetrain1 × 11
GroupsetCUES
BrakesShimano Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Sirrus X 4.0
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Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

33 mph

Sirrus X 4.0

35 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

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Price History
Reviews
BikeRadar
Specialized Sirrus X 3.0 review | BikeRadar

Feb 2024 · Simon Withers

Single-ring aluminium machine with all-road and gravel ambitions

Highs
  • Great price

  • Good comfort

  • Practical and versatile

  • Excellent braking

  • Reflective logos

Lows
  • Biggish gear jumps

  • No bar ends

Read Review

Geometry
Specs
Build
Frame

Specialized A1SL Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts

BB StandardBSA, 68mm, Threaded

ColorSatin Dark Navy Metallic / Dolomite Metallic Frost Reflective

Fork

Specialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5

Travel20mm

Bottom Bracket

Threaded BSA 68mm, 24mm spindle

Stem

Future Stem, Comp

Handlebar

Alloy Mini Rise, 9-degree backsweep, 15mm rise, 31.8mm

Saddle

Body Geometry Power Sport, steel rails

Seatpost

Alloy, 2-bolt, 14mm offset, 27.2mm

TypeRigid

Pedals

Specialized, platform

Groupset
Rear Derailleur

Shimano Cues 11-speed w/ Shadow Plus

Crank

Prowheel Alloy, XXS - XS: 165mm, S - M: 170mm, L - XL: 175mm, Narrow Wide Steel 42T

Shifters

Shimano Cues SL-U6000, 11-Speed

Cassette

Shimano, CS-LG400-11, CUES, 11-Speed, 11-50T

Chain

KMC eGlide for 11-Speed Cues

Brakes

Front: Shimano BR-MT200, hydraulic disc, 160mm, Rear: Shimano BR-MT200, hydraulic disc, 160mm

TypeShimano Hydraulic Disc

Wheels
Rims

700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h

Spokes

Stainless, 14g

Front Hub

Alloy, sealed cartridge bearings, Center Lock, 12x100mm thru-axle, 24h

Rear Hub

Alloy, Center lock Disc, High-Low Flange, Sealed Cartridge Bearing, 32H, 12mm Axle, 142mm Spacing

Tires

Front: Pathfinder Wirebead Fast Gravel 700X40C, Rear: Pathfinder Wirebead Fast Gravel 700X40C

Rider Notes
Riders Also Viewed

First added August 9

Last updated June 8