Velopedia Bicycle Archive
2026 Specialized Tarmac SL8 Pro - Shimano Ultegra Di2
Original manufacturer specifications including 7.25 kg (15 lb, 15.7 oz) published weight, geometry for 7 published sizes.
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What Velopedia knows
- Model year
- 2026
- Category
- Road
- Original MSRP
- $8,499.99
- Sizes
- 44, 49, 52, 54, 56, 58, 61
- Colors
- Gloss Dolomite Metallic / Nebula Metallic, Gloss Red Sky / Chrome
- Weight
- 7.25 kg (15 lb, 15.7 oz)
- Geometry
- 7 manufacturer sizes · Geometry context
- Record coverage
- 20 preserved details · 8 archived images · original MSRP · preserved geometry
- Archive ID
- 900001145
Frameset
| Frame Construction | Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc |
|---|---|
| Frame Material | Carbon Fiber |
| Fork | FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano Ultegra Di2 R8170, hydraulic disc |
|---|---|
| Front Derailleur | Shimano Ultegra Di2 R8150, braze-on |
| Rear Derailleur | Shimano Ultegra Di2 R8150, 12-speed |
| Crankset | Shimano Ultegra R81000 with 4iiii Precision 3+ Power Meter, 52/36t |
| Bottom Bracket | Shimano Threaded BSA BB |
| Cassette | Shimano Ultegra, 12-speed, 11-30t |
| Chain | Shimano XT CN-M8100, 12-speed |
Brakes
| Brakes | (F) Shimano Ultegra BR-R8170 hydraulic disc / (R) Shimano Ultegra BR-R8170 hydraulic disc |
|---|
Cockpit & Contact Points
| Headset | Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use |
|---|---|
| Handlebar | Roval Rapide Cockpit, Integrated Bar/Stem |
| Saddle | Power Pro Mirror, Hollow Ti rails |
| Seatpost | S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset |
Wheels & Tires
| Wheels | (F) Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 51mm depth, Win Tunnel Engineered, DT350 hub, 18h, DT Swiss Competition Race Straight Pull Spokes / (R) Roval Rapide CL III, Tubeless, 21mm internal width carbon rim, 48.5mm depth, Win Tunnel Engineered, DT350 hub, 24h, DT Swiss Competition Race Straight Pull Spokes |
|---|---|
| Front Tire | S-Works Turbo TLR Race Tire, 700x28c |
| Rear Tire | S-Works Turbo TLR Race Tire, 700x28c |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | 44 | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|---|
| Seat tube | 433 mm | 445 mm | 456 mm | 473 mm | 494 mm | 515 mm | 545 mm |
| Effective top tube | 496 mm | 509 mm | 531 mm | 541 mm | 563 mm | 577 mm | 595 mm |
| Head tube | 99 mm | 109 mm | 120 mm | 137 mm | 157 mm | 184 mm | 204 mm |
| Head-tube angle | 70.5° | 71.75° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Seat-tube angle | 75.5° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Chainstay / rear center | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 970 mm | 973 mm | 975 mm | 978 mm | 991 mm | 1006 mm | 1013 mm |
| Bottom-bracket drop | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Bottom-bracket height | 266 mm | 266 mm | 266 mm | 268 mm | 268 mm | 268 mm | 268 mm |
| Reach | 366 mm | 375 mm | 380 mm | 384 mm | 395 mm | 402 mm | 408 mm |
| Stack | 501 mm | 514 mm | 527 mm | 544 mm | 565 mm | 591 mm | 612 mm |
| Standover height | 723 mm | 735 mm | 746 mm | 768 mm | 786 mm | 808 mm | 834 mm |
| Fork offset / rake | 47 mm | 47 mm | 47 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 572 mm | 574 mm | 577 mm | 579 mm | 592 mm | 606 mm | 613 mm |
| Trail | 71 mm | 63 mm | 58 mm | 58 mm | 55 mm | 55 mm | 52 mm |
| Fork length / axle-to-crown | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm | 370 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm |
| Stem length | 75 mm | 75 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm |
| Handlebar width | 380 mm | 380 mm | 400 mm | 400 mm | 420 mm | 420 mm | 440 mm |
Geometry source: Manufacturer HTML geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
44 geometry
Archive context: The seat angle of 75.5° sits toward the steeper end. Its wheelbase of 970 mm sits toward the shorter end. Its reach of 366 mm sits toward the shorter end.
Compared with 64 distinct road geometries in the XS-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 44 geometry 49 geometry
Archive context: Its wheelbase of 973 mm sits toward the shorter end. The seat angle of 75.5° sits toward the steeper end. Its stack of 514 mm sits somewhat lower than typical.
Compared with 88 distinct road geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 49 geometry 52 geometry
Archive context: Its wheelbase of 975 mm sits toward the shorter end. Its stack of 527 mm sits toward the lower end. Its trail of 58 mm sits somewhat lower than typical.
Compared with 88 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 52 geometry 54 geometry
Archive context: Its wheelbase of 978 mm sits toward the shorter end. The head angle of 73° sits toward the steeper end. Its trail of 58 mm sits somewhat lower than typical.
Compared with 88 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 54 geometry 56 geometry
Archive context: Its trail of 55 mm sits toward the lower-trail end. The head angle of 73.5° sits toward the steeper end. Its wheelbase of 991 mm sits toward the shorter end.
Compared with 77 distinct road geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 56 geometry 58 geometry
Archive context: Its trail of 55 mm sits toward the lower-trail end. The head angle of 73.5° sits toward the steeper end. Its wheelbase of 1006 mm sits toward the shorter end.
Compared with 63 distinct road geometries in the XL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 58 geometry 61 geometry
Archive context: The head angle of 74° sits toward the steeper end. Its trail of 52 mm sits toward the lower-trail end. Its wheelbase of 1013 mm sits toward the shorter end.
Compared with 39 distinct road geometries in the XXL-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze 61 geometry Parts & serviceability
Find replacement parts
Shimano XT CN-M8100, 12-speed
Interpreted as Shimano Deore XT · 12-speed Exact archived model
Shimano Ultegra, 12-speed, 11-30t
Interpreted as Shimano Ultegra · 12-speed Component family — verify exact version
(F) Shimano Ultegra BR-R8170 hydraulic disc / (R) Shimano Ultegra BR-R8170 hydraulic disc
Brake model identified — verify pad shape
More qualified parts (6)
Shimano Threaded BSA BB
Named archived component — verify dimensions
Shimano Ultegra R81000 with 4iiii Precision 3+ Power Meter, 52/36t
Component family — verify exact version
Shimano Ultegra Di2 R8150, braze-on
Interpreted as Shimano Ultegra · 12-speed · Di2 Component family — verify exact version
Shimano Ultegra Di2 R8150, 12-speed
Interpreted as Shimano Ultegra · 12-speed · Di2 Component family — verify exact version
Shimano Ultegra Di2 R8170, hydraulic disc
Interpreted as Shimano Ultegra · 12-speed · Di2 Component family — verify exact version
Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use
Named archived component — verify dimensions
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameInspect the frame in bright light, especially around the head tube, bottom bracket, chainstays and clamped areas. Look for cracks, ripples, crushed sections or signs of a previous impact.Inspect the frame and fork →
- BrakesBoth levers should feel firm and return cleanly. Check for fluid around the levers and calipers, inspect pad thickness and contamination, and look for worn or bent rotors.Inspect the brakes →
- DrivetrainConfirm every shift-system battery charges, every shift control works and the derailleur moves cleanly across the cassette. Make sure the matching shift-system charger is included, then measure chain wear and inspect the cassette teeth.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 20 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: 2026 Specialized Tarmac SL8 Pro - Shimano Ultegra Di2 · Road · Published sizes: 44, 49, 52, 54, 56, 58, 61
Frame and fork
Inspect the frame and fork →Archived: Frame: Tarmac SL8 FACT 10r Carbon, Rider First Engineered™, Win Tunnel Engineered, Clean Routing, Threaded BB, 12x142mm thru-axle, flat-mount disc · Fork: FACT 10r Carbon, 12x100mm thru-axle, flat-mount disc · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano Ultegra Di2 R8170, hydraulic disc · Front derailleur: Shimano Ultegra Di2 R8150, braze-on · Rear derailleur: Shimano Ultegra Di2 R8150, 12-speed · Crankset: Shimano Ultegra R81000 with 4iiii Precision 3+ Power Meter, 52/36t · Bottom bracket: Shimano Threaded BSA BB · Cassette: Shimano Ultegra, 12-speed, 11-30t · Chain: Shimano XT CN-M8100, 12-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) Shimano Ultegra BR-R8170 hydraulic disc / (R) Shimano Ultegra BR-R8170 hydraulic disc
Wheels and tires
Check wheels and tires →Archived: Front tire: S-Works Turbo TLR Race Tire, 700x28c · Rear tire: S-Works Turbo TLR Race Tire, 700x28c
Controls and contact points
Archived: Headset: Stem headset spacers kit for SL7 stem & Roval Rapide cockpit use · Handlebar: Roval Rapide Cockpit, Integrated Bar/Stem · Seatpost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15mm offset · Saddle: Power Pro Mirror, Hollow Ti rails
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.