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2025 Specialized

Sirrus X 4.0 EQ

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

Manufacturer Price

€1,749($2,004)
Weight27.7 lbs  
FrameAluminum
SuspensionHardtail, 20mm
ForkSpecialized Future Shock 1.5
Wheels700c Aluminum
Drivetrain1 × 12
GroupsetDeore
BrakesHydraulic Disc
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Insights
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)

31 mph

Sirrus X 4.0 EQ

35 mph

Similar Bikes

Highest gear

(descending)

Spec Level

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

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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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

road.cc
Specialized Sirrus X 3.0

May 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

Highs
  • Capable on the gravel and road

  • Good spread of gears

  • Excellent hydraulic brakes

  • Reflective detailing is eye-catching

Lows
  • Flat bar makes filtering through urban traffic trickier

Read Review

Geometry
Specs
Build
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 StandardBSA, 68mm, Threaded

ColorStn Refl Strmgry Char

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

Stem

Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

Handlebar

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

Saddle

Power Comp, Hollow Cr-mo rails, 155/143mm

Seatpost

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

TypeRigid

Pedals

Specialized Body Geometry Fitness, Platform, Plastic

Groupset
Rear Derailleur

Shimano Deore, M6100, 12pd, Shadow Plus

Crank

Forged aluminum arms, 24mm spindle, Narrow-wide steel chainring 40t, chainguard

Shifters

Shimano Deore M6100, 12-speed

Cassette

Sunrace CSMZ800, 12-speed, 11-51t

Chain

KMC X12EPT, 12-speed, anti-corrosion coating w/ reusable Missing Link™

Brakes

Hydraulic Disc

TypeHydraulic Disc

Wheels
Rims

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

Spokes

Stainless, 14g

Tires

Pathfinder Sport, 700x38

Accessories
Lights

Herrmans H-Trace Mini Dynamo Rear Light

Fenders

DryTech Fender, Front & Rear, Aluminum with Black Finish

Racks

Tubus, Rear Rack, 15kg Weight Limit, Aluminum

Rider Notes
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First added October 26

Last updated June 20