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Specialized Sirrus 2015

2015 Urban
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Specialized Sirrus 2015

Bike details

Overview

Key information split into simple groups.

Bike summary

  • Category
  • Frame Aluminum
  • Wheels 700c
  • Groupset Altus, Shimano
  • Suspension Rigid
  • Brakes Rim
Sizing

Recommended size guide.

  • XS

    156cm - 166cm

  • SM

    163cm - 174cm

  • MD

    171cm - 182cm

  • LG

    179cm - 189cm

  • XL

    185cm - 195cm

Parts list

Components

Main components, grouped by system.

Bike components

Frame

Frame

Specialized A1 Premium Aluminum, fully manipulated butted tubing, integrated lower bearing, fender/rack eyelets

Suspension Fork

Steel, straight blade, rack/fender mounts

Drivetrain

Rear Derailleur

Shimano Altus, 8-speed

Front Derailleur

Shimano FD-M191, top swing, dual-pull

Shift Levers

Shimano EZ Fire, 8-speed

Cassette

Shimano, 8-speed, 11-32

Crank

Shimano Altus, 8-speed triple, w/ chainguard

Bottom Bracket

Square taper, cartridge bearings

Chain

KMC X8, 8-speed, reusable Missing Link

Pedals

Nylon flat

Wheels

Front Hub

Double-sealed, QR, 32h

Rear Hub

Double-sealed, QR, 32h

Rims

700c, alloy double-wall, CNC sidewalls, 32h

Spokes

Stainless, 14g, w/ brass nipple

Tires

Specialized Nimbus, 26TPI, wire bead, Flak Jacket protection, 700x32c

Brakes

Brakes

Alloy V-brake, linear pull, w/ alloy lever

Cockpit

Stem

Ahead stem, 20-degree rise, Melt-forged alloy, 4-bolt, 25.4mm clamp

Handlebar

Specialized flat, alloy, 6-degree backsweep, 25.4mm

Headset

1-1/8"" FSA integrated cartridge lower, external sealed upper bearings

Seat

Saddle

Body Geometry Targa Sport, steel rails, 155mm

Seatpost

Alloy, 2-bolt, micro-adjust, 12.5mm offset, 27.2mm, anti-corrosion hardware

Fit data

Geometry

Numbers for sizing and ride feel.

SizeXSSMMDLGXL
Front Center
621 mm629 mm637 mm647 mm667 mm
Rake
51 mm51 mm51 mm51 mm51 mm
Trail
70 mm67 mm63 mm60 mm60 mm
Top Tube Length
550 mm565 mm575 mm595 mm615 mm
Seat Tube Angle
73.5 °73.25 °73.5 °73 °73 °
Seat Tube Length
395 mm440 mm485 mm530 mm570 mm
Head Tube Angle
70.5 °71 °71.5 °72 °72 °
Head Tube Length
130 mm150 mm165 mm190 mm225 mm
Chainstay Length
440 mm440 mm440 mm440 mm440 mm
Wheelbase
1051 mm1060 mm1068 mm1077 mm1098 mm
Bottom Bracket Drop
70 mm70 mm70 mm70 mm70 mm
Standover Height
711 mm745 mm781 mm816 mm854 mm
Wheels700700700700700
Rider Min Height156 cm163 cm171 cm179 cm185 cm
Rider Max Height166 cm174 cm182 cm189 cm195 cm

Model Overview

Sirrus belongs to the Specialized Sirrus model. Specialized released 176 bikes variations of this model so far. Take a sneak peek at all Specialized Sirrus bikes models from 2015, by clicking here.

Safety

When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.

Average price for Fitness bikes

If you want an acceptable Fitness bike you should know that the average price is 656$. However, this doesn’t mean that if you spend less money on a Fitness bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.

Sirrus components

Fork material

The fork on this bike is made out of steel, so, it can add some extra weight to your bike. However, steel is a pretty tough and durable material.

Wheels

The Sirrus 2015 bike is equipped with 700c aluminum wheels when leaving the factory. These wheels are the most used kind for road bikes in general. However, these wheels don’t perform so well when passing over obstacles.

Brakes

For your safety, it is important to have quality breaks on your bike. Specialized Sirrus has Rim brakes installed. Rim brakes deliver an average performance overall. However, they are not nearly as effective as hydraulic brakes are.

Sizes

This bike is available in 5 sizes. They vary from 156 cm – 195 cm (5.12 ft – 6.4 ft). In short, you can easily find one that suits you.