2021 Specialized

Sirrus X 2.0 Step Through

A 700c aluminum frame fitness bike with mid-range components and hydraulic disc brakes.
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MSRP$775
FrameAluminum
SuspensionRigid
ForkSteel
Wheels700c Aluminum
Drivetrain1 × 8
GroupsetmicroSHIFT Advent
BrakesHydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Sirrus X 2.0 Step Through
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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)

29 mph

Sirrus X 2.0 Step Through

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.

Compare the full Sirrus X model range

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Sizing
XS

4'11" – 5'5"

SM

5'2" – 5'8"

MD

5'5" – 5'11"

🐐 Estimated

Rider Fit Notes

None yet.

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Reviews
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

Bicycling
The Specialized Sirrus X 4.0 is One Heck of a Hybrid

Mar 2020

Smooth, fast, and utilitarian—this commuter has it all.

Highs
  • Future Shock in the head tube smooths the ride

  • Plenty of go-fast and hill-climbing gearing

  • Part smooth/part knobby, 38mm-wide tires

Lows
  • There are more affordable commuter/fitness options out there

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Specialized A1 Premium Aluminum, Fitness Geometry, butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts

BB StandardBSA, 68mm, Threaded

ColorDusty Turquoise / Rocket Red / Black Reflective

Fork

Hi-Ten steel, flat-mount disc, Plug + Play fender mounts, low rider rack mounts, quick-release

Bottom Bracket

BSA, square-taper, 68mm

Stem

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

Handlebar

Specialized, alloy, 9-degree backsweep, 15mm rise, 31.8mm

Saddle

Bridge Sport, Steel rails, 155/143mm

Seatpost

Alloy, 12mm offset, 2-bolt clamp, 27.2mm

TypeRigid

Pedals

Specialized Body Geometry Fitness, platform, plastic

Groupset
Rear Derailleur

MicroSHIFT Advent 9 Speed, W/O Clutch

Crank

3 pc, Alloy Forged Arms, 40T

Shifters

MicroSHIFT, 8-speed

Cassette

MicroSHIFT, 8-Speed, 12-42t

Chain

KMC X8 w/ Missing Link™

Brakes

Front: Promax F1, hydraulic disc, flat-mount, 160mm, Rear: Promax F1, hydraulic disc, flat-mount, 160mm

TypeHydraulic Disc

Wheels
Rims

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

Spokes

Stainless, 14g

Front Hub

Alloy, 6-bolt disc, loose ball bearing, quick-release, 32h

Rear Hub

Alloy, 6-bolt disc, 8-/9-speed freehub, loose ball bearing, quick-release, 32h

Tires

Front: Pathfinder Sport, 700x42mm, Rear: Pathfinder Sport, 700x42mm

Rider Notes
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Last updated February 24