Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 700c -
Groupset Altus, Tourney -
Suspension Rigid -
Drivetrain 3 × 8 -
Brakes Mechanical Disc
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, Fitness Geometry, fully-manipulated butted tubing, integrated lower bearing, fender/rack mounts
Suspension Fork
Steel, straight blades, IS disc mount, fender/rack mounts
Drivetrain
Rear Derailleur
Shimano Altus, 8-speed
Front Derailleur
Shimano Tourney, top swing, dual pull, 31.8mm band clamp
Shift Levers
Shimano EF500, EZ Fire Plus, 8-speed
Cassette
Shimano, 8-speed, 11-32t
Crank
Stout, forged alloy, 48/38/28T w/chainguard
Bottom Bracket
BSA, square taper, cartridge bearings
Chain
KMC X8, 8-speed w/reusable MissingLink
Pedals
Specialized Fitness platform
Wheels
Front Hub
Specialized disc, double-sealed, loose ball bearings, 9mm QR
Rear Hub
Specialized disc, loose ball bearings, for Shimano 8-/9-speed cassettes, QR
Rims
Disc, 6061 aluminum double-wall
Spokes
Stainless, 14g
Tires
Nimbus Reflect, 700x32mm, 26TPI, Flak Jacket protection
Brakes
Brakes
Mechanical disc, resin pads, 160mm
Cockpit
Stem
Alloy, 4-bolt, 20-degree rise, 25.4mm clamp
Handlebar
Specialized, alloy, 9-degree backsweep, 25.4mm
Seat
Saddle
Canopy Sport, steel rails
Seatpost
Alloy, 12mm offset, 2-bolt clamp, 27.2mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.46 mm | 1.49 mm | 1.5 mm | 1.54 mm | 1.58 mm |
| Bottom Bracket Height | 281 mm | 281 mm | 281 mm | 281 mm | 281 mm |
| Front Center | 621 mm | 629 mm | 637 mm | 647 mm | 667 mm |
| Rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Trail | 70 mm | 67 mm | 64 mm | 60 mm | 60 mm |
| Stack | 558 mm | 579 mm | 595 mm | 621 mm | 654 mm |
| Reach | 383 mm | 389 mm | 397 mm | 404 mm | 413 mm |
| Top Tube Length | 550 mm | 565 mm | 575 mm | 595 mm | 615 mm |
| Seat Tube Angle | 73.5 ° | 73.3 ° | 73.5 ° | 73 ° | 73 ° |
| Seat Tube Length | 395 mm | 440 mm | 485 mm | 530 mm | 570 mm |
| Head Tube Angle | 70.5 ° | 71 ° | 71.5 ° | 72 ° | 72 ° |
| Head Tube Length | 130 mm | 150 mm | 165 mm | 190 mm | 225 mm |
| Chainstay Length | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1051 mm | 1060 mm | 1068 mm | 1077 mm | 1098 mm |
| Bottom Bracket Drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Standover Height | 711 mm | 745 mm | 781 mm | 816 mm | 854 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |
Model Overview
Sirrus Disc is part of the Specialized Sirrus model. There are 176 bikes that carry this model name. Take a sneak peek at all Specialized Sirrus bikes models from 2017, 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 to purchase a solid Fitness bike, it is important to know that the average cost is 656$. However, even though the average price of a Fitness bike is lower, you might still be able to get a top-quality bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Sirrus Disc 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 Disc 2017 bike is equipped with 700c aluminum wheels when leaving the factory. There is no doubt, that 700c wheels are very popular on all road bike models. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Sirrus Disc comes with Mechanical Disc brakes. They are much easier to maintain than hydraulic disk brakes. However, with hydraulic disk brakes, you have the ultimate braking power!
Sizes
This bike is available in 5 sizes. They vary from 156 cm – 195 cm (5.12 ft – 6.4 ft). In conclusion, finding one for you shouldn’t be a problem.