2021 Specialized

Sirrus X 5.0

A 700c carbon frame fitness bike with upper mid-range components and hydraulic disc brakes.
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MSRP$2,500
FrameCarbon
SuspensionHardtail, 20mm
ForkSpecialized Future Shock 1.5
Wheels700c Aluminum
Drivetrain1 × 12
GroupsetSLX, Praxis
BrakesHydraulic Disc
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Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Sirrus X 5.0
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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)

31 mph

Sirrus X 5.0

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.

Compare the full Sirrus X model range

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Sizing
XS

5'2" – 5'6"

SM

5'4" – 5'9"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

XL

6'0" – 6'4"

XXL

6'1" – 6'5"

🐐 Estimated

Rider Fit Notes

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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 FACT 9r carbon, Fitness Geometry, 1x drivetrain, 12x142mm thru-axle, internal cable routing, flat-mount disc, Plug + Play fender mounts

BB StandardBSA, 68mm, Threaded

ColorsGloss Blue Tint / Ice Blue / Satin Black Reflective; Gloss Redwood / Smoke / Satin Black Reflective

Fork

Carbon Monocoque, 12x100mm thru-axle, flat-mount disc, Future Shock 1.5

Travel20mm

Bottom Bracket

Praxis 68-0201B, 68mm BSA

Stem

Future Stem, Comp

Handlebar

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

Saddle

Body Geometry Power Sport, steel rails

Seatpost

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

TypeRigid

Pedals

Platform, alloy

Groupset
Rear Derailleur

Shimano SLX M7100, SGS, 12-speed

Crank

Praxis Alba, 40T

Shifters

Shimano SLX M7100, 12-speed

Cassette

Sunrace CSMZ800, 12-speed, 11-51t

Chain

KMC X12, 12-speed w/ Missing Link™

Brakes

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

TypeHydraulic Disc

Wheels
Rims

700C disc, double-wall alloy, 30mm depth, 21mm internal width, disc-specific

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 Pro, 2Bliss Ready, 700x38mm, Rear: Pathfinder Pro, 2Bliss Ready, 700x38mm

Rider Notes
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Last updated October 8
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