2021 Specialized Sirrus 1.0

A 700c aluminum frame fitness bike with modest components and rim brakes, priced at the low end of the Sirrus model range. Compare the full range

2021 Specialized Sirrus 1.0
MSRP$650
SuspensionRigid
FrameAluminum
ForkSteel
Wheels700c
Drivetrain2 × 7
GroupsetAltus, Tourney

BrakesRim
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Gearing

2 × 7 — 14 speed

Sirrus 1.0

33 mph

Similar Bikes

35 mph

The Sirrus 1.0 is geared about the same as similar bikes for riding up hills.

The Sirrus 1.0 won‘t keep up with similar bikes while riding downhill or sprinting.


Estimated Spec Level

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

Spec level →$0$100$200$300$400$500$600
This bike
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Reviews

May 2022

road.cc
Specialized Sirrus X 3.0

Hybrid do-it-all with a bit of edge and attitude, just as happy around town as it is on the byways

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March 2020

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

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

Read Full Review

September 2019

BikeRadar
Specialized Sirrus Elite review

A fuss-free commuter with a commanding ride position and a nicely understated style

Read Full Review


Geometry

Specs
Build
Frame

Specialized A1 Premium Aluminum, Fitness Geometry, Butted tubing, Internal Cable Routing, V-Brake, Quick-Release, Plug + Play rack/fender mounts

BB StandardBSA, 68mm, threaded

ColorsGloss Black / Charcoal / Satin Black Reflective; Gloss Cast Lilac / Vivid Coral / Satin Black Reflective; Gloss Forest Green / White Mountains / Satin Black Reflective

Fork

Hi-Ten steel, V-Brake, Plug + Play fender mounts, low rider rack mounts, quick-release

Bottom Bracket

BSA, square-taper, 68mm

Stem

Specialized Flowset, integrated, 3D-forged alloy, 4-bolt, 12-degree rise, 31.8mm clamp

Handlebar

Double-butted alloy, 5-degree backsweep, 25.4mm

Saddle

Bridge Sport, Steel rails, 155/143mm

Seatpost

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

Pedals

Specialized Body Geometry Fitness, platform, plastic

Groupset
Rear Derailleur

Shimano Altus M310

Front Derailleur

Shimano Tourney FD-TY710

Crank

Shimano Tourney, 3-piece, 46/30T, 46/30T w/chainguard

Shifters

Shimano EF500, 7-speed

Cassette

Shimano HG200, 7-speed, 12-32t

Chain

KMC X8 w/ Missing Link™

Brakes

V-brake, linear pull

Wheels
Rims

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

Spokes

Stainless, 14g

Front Hub

Alloy, loose ball bearing, quick-release, 32h

Rear Hub

Alloy, loose ball bearings, quick-release, 7-speed freehub, 32h

Tires

RoadSport, Wire bead, Blackbelt/Endurant Casing, 700x32c

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