2023 Specialized Sirrus 4.0 Hybrid Bike


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The 2023 Specialized Sirrus 4.0 Hybrid Bike is the top bike in the Specialized Sirrus range and comes with some key upgrades including a Carbon fibre FACT 9 fork which helps to soak up bumps and vibrations for a smoother ride. It also saves nearly 1.2kg over Sirrus 2.0 model making the whole bike lighter and faster.

The Sirrus comes with a lightweight A1 Alloy frame with clean internal cable routing makes the bike look sleeker and also cuts down on maintenance. The Sirrus comes with an upright riding position which is perfect for less experienced riders, especially when negotiating traffic. It also has all the mounting points you need to add mudguards, racks and bottles.

The Sirrus 4.0 comes with Specialized Body Geometry touchpoints such as the saddle and handlebar grips to give you a comfortable ride. 2x10 speed road bike gearing will give you plenty of speed. The 700x32c RoadSport tyres with built in puncture protection will get you where you are going fast.

This bike is perfect for

Riders looking for a fast hybrid bike for getting to work, getting fit or running errands. With a carbon fork the Sirrus 4.0 and road bike gearing is lighter and faster.

Key features
  • Lightweight A1 Alloy frame with clean internal cable routing
  • Carbon fibre FACT 9 fork
  • Upright position with Body Geometry touchpoints for comfort and control.
  • 2X10 Speed Shimano Tiagra gearing
  • Shimano Hydraulic Disc Brakes

Why buy a hybrid bike?

Hybrids are the bikes that most people should have. If you want a bike for commuting, going to the shops, getting fit or just for getting around a hybrid is generally the best choice. They combine the speed of a road racing bike with the confident handling of a mountain bike to give you the best of both worlds.

Where are you going to ride?

The first point to think about when picking a hybrid is the kind of surfaces you will be riding on. There are two main flavours of hybrid bike. Some, like the Trek FX, Specialized Sirrus and Cannondale Quick are mainly intended for use on the road. They have bigger gears and skinnier tyres so that they are fast on tarmac. Other bikes like the Trek Dual Sport, Specialized Sirrus X or Cannondale Quick CX are designed to be used on a mixture of surfaces including tracks and gravel paths. They have bigger, grippier tyres and often come with easier gears and some suspension to soak up bumps.

Read our full hybrid bike buying guide

Who are Specialized?

Specialized is one of the best-known quality bike brands in the world. Started by a group of riders in 1974. A fact which has guided their decision making ever since.

" Made for riders, by riders."

They strove to make the best quality tires when quality tyres weren't around. When people wanted to ride cruisers in the dirt, they made the first production mountain bike. When roadies wanted to go faster, Specialized doubled down on carbon and built their own wind tunnel.

Bikes like the Allez, Rockhopper and Stumpjumper have developed followings and reputations of their own. Specialized has a reputation for making high-end, high-quality bikes. Specialized bikes always look great with high-quality paint and sensible sizing hel0s you get the right bike each time. If you buy a Specialized bike you can be guaranteed it will do what it is supposed to and will last.

Find our more about Specialized bikes

Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

FrameSpecialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, 12x142mm thru-axle, Plug + Play rack/fender mounts
ForkSpecialized FACT 9r Carbon Monocoque, flat-mount disc, 12x100mm thru-axle, low rider mounts, Plug + Play fender mounts, Future Shock 1.5
HandlebarsDouble-butted alloy, 9-degree backsweep, 31.8mm
StemFuture Stem, Comp
TapeSpecialized Body Geometry Contour, lock-on
SaddleBridge Comp, Hollow Cr-mo rails, 155/143mm
SeatPostAlloy, 2-bolt, 14mm offset, 27.2mm
Seat BinderBolt-type, 31.8mm
Front BrakeShimano BR-MT200, hydraulic disc, 160mm
Rear BrakeShimano BR-MT200, hydraulic disc, 160mm
Shift LeversShimano Tiagra, 10-speed w/ Optical Gear Display
Front DerailleurShimano Tiagra FD-4700, Band-clamp
Rear DerailleurShimano Tiagra, 10-speed
ChainKMC, X10, EPT anti-corrosion coating, 10-speed w/ Missing Linkâ„¢
CassetteShimano CS-HG500, 10-speed, 11-32t
CranksetPraxis Alba M24, solid forged arms, 6061 outer ring, steel inner ring, 110 BCD, 10-speed
Chainrings48/32, chainguard
Bottom BracketPraxis M24, BSA
Rims700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h
Front HubAlloy, 6-bolt disc, sealed cartridge bearing, high-low flange, 12x100mm thru-axle, 24h
Rear HubAlloy, 6-bolt disc, sealed cartridge bearings, high-low flange, 12x142mm thru-axle, 28h
SpokesStainless, 14g
Front TireRoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Rear TireRoadSport Reflect, Wire bead, Blackbelt/Endurant Casing, 700x32c
Inner Tubes700x28/38mm, 48mm Presta valve
PedalsSpecialized Body Geometry Fitness, platform, plastic
Sizes L, M, S, XL, XS, XXS
Brand Specialized
Model Year 2023
Barcodes 888818885091, 888818885138, 888818885206, 888818885411, 888818885565, 888818885848, 888818892860, 888818893133, 888818893447, 888818893478, 888818893836, 888818893881
SKUs / Part Numbers 90923-5000, 90923-5001, 90923-5002, 90923-5003, 90923-5004, 90923-5005, 90923-5100, 90923-5101, 90923-5102, 90923-5103, 90923-5104, 90923-5105

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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