Rear tire: 700C×32.
Velopedia Bicycle Archive
2020 Specialized Sirrus Sport
Original specifications: geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2020
- Category
- Hybrid
- Original MSRP
- $900.00
- Sizes
- S, M, L, XL, XXL
- Colors
- Black Chrome / Chrome, Gloss Flo Red/Black/Black Reflective
- Geometry
- 5 manufacturer sizes
- In this record
- 21 specifications · 2 archived images · original MSRP · geometry
- Archive ID
- 900003848
Model history 13 other years
Original buildAluminum
Frameset
| Frame Construction | Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts |
|---|---|
| Frame Material | Aluminum |
| Fork | Specialized FACT 9r carbon, 1-1/8" steerer, quick-release, flat-mount disc, Plug + Play rack & fender mounts |
| Fork Material | Carbon Fiber |
Drivetrain
| Rear Derailleur | Shimano Sora, 9-speed |
|---|---|
| Crankset | 2-piece, solid forged arms, 24mm spindle, steel chainrings w/ chainguard; chainrings: Aluminum, 32T |
| Bottom Bracket | BSA for 24mm spindle |
| BB Shell Width | 24 mm |
| Cassette | Shimano Sora, 9-speed, 11-34t |
| Chain | KMC X9, 9-speed w/ Missing Link™ |
| Pedals | Specialized Fitness platform, alloy |
Brakes
| Brakes | (F) Tektro HD-R310, hydraulic disc, resin pads, flat-mount, Shimano RT10 Center Lock™ 160mm / (R) Tektro HD-R310, hydraulic disc, resin pads, flat-mount, Shimano RT10 Center Lock™ 160mm |
|---|
Cockpit & Contact Points
| Handlebar | Double-butted alloy, 9-degree backsweep, 31.8mm |
|---|---|
| Stem | Specialized, 3D-forged alloy, 4-bolt, 7-degree rise |
| Saddle | Specialized Canopy Sport, steel rails, 155mm |
| Seatpost | Alloy, 12mm offset, 2-bolt clamp, 27.2mm |
Wheels & Tires
| Hubs | (F) Shimano Center Lock™ disc, loose ball bearings, quick-release, 32h / (R) Shimano, Center Lock™ disc, 9x135mm spacing, quick-release, 32h |
|---|---|
| Rims | 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h |
| Spokes | Stainless, 14g |
| Front Tire | Specialized Nimbus II Sport Reflect, 60TPI, wire bead w/ Black Belt protection, 700x32mm |
| Rear Tire | Specialized Nimbus II Sport Reflect, 60TPI, wire bead w/ Black Belt protection, 700x32mm |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 20 measurements
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Seat tube | 415 mm | 455 mm | 495 mm | 535 mm | 565 mm |
| Effective top tube | 555 mm | 576 mm | 583 mm | 604 mm | 631 mm |
| Head tube | 153 mm | 179 mm | 196 mm | 223 mm | 256 mm |
| Head-tube angle | 70° | 71° | 71.5° | 72° | 72° |
| Seat-tube angle | 73.5° | 73.5° | 73.5° | 73.5° | 73° |
| Chainstay / rear center | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1057 mm | 1069 mm | 1072 mm | 1087 mm | 1109 mm |
| Bottom-bracket drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Bottom-bracket height | 275 mm | 275 mm | 275 mm | 275 mm | 275 mm |
| Reach | 388 mm | 400 mm | 402 mm | 414 mm | 426 mm |
| Stack | 564 mm | 593 mm | 611 mm | 639 mm | 670 mm |
| Standover height | 735 mm | 775 mm | 805 mm | 845 mm | 875 mm |
| Fork offset / rake | 51 mm | 51 mm | 51 mm | 51 mm | 51 mm |
| Front center | 626 mm | 638 mm | 641 mm | 656 mm | 679 mm |
| Trail | 72 mm | 65 mm | 62 mm | 59 mm | 59 mm |
| Fork length / axle-to-crown | 390 mm | 390 mm | 390 mm | 390 mm | 390 mm |
| Seatpost length | 300 mm | 350 mm | 350 mm | 350 mm | 350 mm |
| Crank length | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm |
| Stem length | 80 mm | 90 mm | 100 mm | 100 mm | 110 mm |
| Handlebar width | 580 mm | 580 mm | 600 mm | 620 mm | 620 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

SRAM PC-951 Chain - 9 Speed Power link/Gold, 114 links
Replacement option

Continental Gator Hardshell Tire - Black Edition Black, 700c x 32mm
700x32c
Replacement option
Other replacement options (1)

Challenge Strada Pro Tubeless Tire Tan, 700x32
700x32c
Replacement option
More parts (4)Fewer parts
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2020 Specialized Sirrus Sport · Hybrid · Published sizes: S, M, L, XL, XXL
Frame and fork
Inspect the frame and fork →Archived: Frame: Specialized A1 SL Premium Aluminum, Fitness Geometry, fully manipulated butted tubing, internal cable routing, flat-mount disc, quick-release, Plug + Play rack/fender mounts · Fork: Specialized FACT 9r carbon, 1-1/8" steerer, quick-release, flat-mount disc, Plug + Play rack & fender mounts · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Rear derailleur: Shimano Sora, 9-speed · Crankset: 2-piece, solid forged arms, 24mm spindle, steel chainrings w/ chainguard; chainrings: Aluminum, 32T · Bottom bracket: BSA for 24mm spindle · Cassette: Shimano Sora, 9-speed, 11-34t · Chain: KMC X9, 9-speed w/ Missing Link™
Brakes
Inspect the brakes →Archived: Brakes: (F) Tektro HD-R310, hydraulic disc, resin pads, flat-mount, Shimano RT10 Center Lock™ 160mm / (R) Tektro HD-R310, hydraulic disc, resin pads, flat-mount, Shimano RT10 Center Lock™ 160mm
Wheels and tires
Check wheels and tires →Archived: Rims: 700C disc, double-wall alloy, 22mm depth, 21mm internal width, 32h · Hubs: (F) Shimano Center Lock™ disc, loose ball bearings, quick-release, 32h / (R) Shimano, Center Lock™ disc, 9x135mm spacing, quick-release, 32h · Front tire: Specialized Nimbus II Sport Reflect, 60TPI, wire bead w/ Black Belt protection, 700x32mm · Rear tire: Specialized Nimbus II Sport Reflect, 60TPI, wire bead w/ Black Belt protection, 700x32mm
Controls and contact points
Archived: Handlebar: Double-butted alloy, 9-degree backsweep, 31.8mm · Stem: Specialized, 3D-forged alloy, 4-bolt, 7-degree rise · Seatpost: Alloy, 12mm offset, 2-bolt clamp, 27.2mm · Saddle: Specialized Canopy Sport, steel rails, 155mm · Pedals: Specialized Fitness platform, alloy
Before and during the test ride
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Gallery2 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





