2025 SL8 Specialized Tarmac sl8 Pro
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category |
Geometry
165mm | 44 | 165mm | 49 | 170mm | 52 | 172.5mm | 54 | 172.5mm | 56 | 175mm | 58 | 58 | 175mm | 61 | |
Stack | 501mm | 501mm | 514mm | 514mm | 527mm | 527mm | 544mm | 544mm | 565mm | 565mm | 591mm | 591mm | 591mm | 612mm | 612mm |
Reach | 366mm | 366mm | 375mm | 375mm | 380mm | 380mm | 384mm | 384mm | 395mm | 395mm | 402mm | 402mm | 402mm | 408mm | 408mm |
Stack to Reach Ratio | 1.37:1 | 1.37:1 | 1.37:1 | 1.37:1 | 1.39:1 | 1.39:1 | 1.42:1 | 1.42:1 | 1.43:1 | 1.43:1 | 1.47:1 | 1.47:1 | 1.47:1 | 1.5:1 | 1.5:1 |
Seat Tube Length, Unknown | 433mm | 433mm | 445mm | 445mm | 456mm | 456mm | 473mm | 473mm | 494mm | 494mm | 515mm | 515mm | 515mm | 545mm | 545mm |
Top Tube Length, Effective/Horizontal Center | 496mm | 496mm | 509mm | 509mm | 531mm | 531mm | 541mm | 541mm | 563mm | 563mm | 577mm | 577mm | 577mm | 595mm | 595mm |
Top Tube Slope | 9.8deg | 9.8deg | 9.7deg | 9.7deg | 9.9deg | 9.9deg | 9.9deg | 9.9deg | 9.7deg | 9.7deg | 10.1deg | 10.1deg | 10.1deg | 9.1deg | 9.1deg |
Head Tube Angle | 70.5deg | 70.5deg | 71.75deg | 71.75deg | 72.5deg | 72.5deg | 73deg | 73deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 74deg | 74deg |
Seat Tube Angle | 75.5deg | 75.5deg | 75.5deg | 75.5deg | 74deg | 74deg | 74deg | 74deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73.5deg | 73deg | 73deg |
Head Tube Length | 99mm | 99mm | 109mm | 109mm | 120mm | 120mm | 137mm | 137mm | 157mm | 157mm | 184mm | 184mm | 184mm | 204mm | 204mm |
Bottom Bracket Drop | 74mm | 74mm | 74mm | 74mm | 74mm | 74mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm | 72mm |
Bottom Bracket Height | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm | 265mm | 265mm | 265mm | 265mm | 265mm | 265mm | 265mm | 265mm | 265mm |
Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm | 410mm |
Chainstay Length Horizontal | 403.3mm | 403.3mm | 403.3mm | 403.3mm | 403.3mm | 403.3mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm | 403.6mm |
Front-Center | 572mm | 572mm | 574mm | 574mm | 577mm | 577mm | 579mm | 579mm | 592mm | 592mm | 606mm | 606mm | 606mm | 613mm | 613mm |
Front-Center Horizontal | 566.7mm | 566.7mm | 569.7mm | 569.7mm | 571.7mm | 571.7mm | 574.4mm | 574.4mm | 587.4mm | 587.4mm | 602.4mm | 602.4mm | 602.4mm | 609.4mm | 609.4mm |
Wheelbase | 970mm | 970mm | 973mm | 973mm | 975mm | 975mm | 978mm | 978mm | 991mm | 991mm | 1006mm | 1006mm | 1006mm | 1013mm | 1013mm |
Fork Offset/Rake | 46.7mm | 46.7mm | 47.2mm | 47.2mm | 46.6mm | 46.6mm | 44.1mm | 44.1mm | 44.4mm | 44.4mm | 44.7mm | 44.7mm | 44.7mm | 44.7mm | 44.7mm |
Fork Length, Unknown | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm | 370mm |
Trail | 69.8mm high | 69.8mm high | 61.5mm mid/​neutral | 61.5mm mid/​neutral | 57.4mm mid/​neutral | 57.4mm mid/​neutral | 57mm mid/​neutral | 57mm mid/​neutral | 53.5mm mid/​neutral | 53.5mm mid/​neutral | 53.2mm mid/​neutral | 53.2mm mid/​neutral | 53.2mm mid/​neutral | 50.1mm mid/​neutral | 50.1mm mid/​neutral |
Mechanical Trail | 65.8mm | 65.8mm | 58.4mm | 58.4mm | 54.7mm | 54.7mm | 54.5mm | 54.5mm | 51.3mm | 51.3mm | 51mm | 51mm | 51mm | 48.2mm | 48.2mm |
Wheel Flop | 22mm | 22mm | 18.3mm | 18.3mm | 16.5mm | 16.5mm | 15.9mm | 15.9mm | 14.6mm | 14.6mm | 14.5mm | 14.5mm | 14.5mm | 13.3mm | 13.3mm |
Standover Height | 723mm | 723mm | 735mm | 735mm | 746mm | 746mm | 768mm | 768mm | 786mm | 786mm | 808mm | 808mm | 808mm | 834mm | 834mm |
Tire to Pedal Spindle | 65mm 170 mm cranks | 70mm 165 mm cranks | 67mm 170 mm cranks | 72mm 165 mm cranks | 70mm 170 mm cranks | 70mm 170 mm cranks | 72mm 170 mm cranks | 69.5mm 172.5 mm cranks | 85mm 170 mm cranks | 82.5mm 172.5 mm cranks | 99mm 170 mm cranks | 94mm 175 mm cranks | 94mm 175 mm cranks | 106mm 170 mm cranks | 101mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 93mm 170 mm cranks | 98mm 165 mm cranks | 93mm 170 mm cranks | 98mm 165 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 95mm 170 mm cranks | 92.5mm 172.5 mm cranks | 95mm 170 mm cranks | 92.5mm 172.5 mm cranks | 95mm 170 mm cranks | 90mm 175 mm cranks | 90mm 175 mm cranks | 95mm 170 mm cranks | 90mm 175 mm cranks |
Pro Build
165mm | 44 | 165mm | 49 | 170mm | 52 | 172.5mm | 54 | 172.5mm | 56 | 175mm | 58 | 58 | 175mm | 61 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm | 26mm |
Tire Outer Diameter | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm | 674mm |
Bike Length with Tires | 1644mm | 1644mm | 1647mm | 1647mm | 1649mm | 1649mm | 1652mm | 1652mm | 1665mm | 1665mm | 1680mm | 1680mm | 1680mm | 1687mm | 1687mm |
Crank Length | — | 165mm | — | 165mm | — | 170mm | — | 172.5mm | — | 172.5mm | — | 175mm | 175mm | — | 175mm |
Handlebar Width | 380mm | 380mm | 380mm | 380mm | 400mm | 400mm | 400mm | 400mm | 420mm | 420mm | 420mm | 420mm | 420mm | 440mm | 440mm |
Stem Length | 75mm | 75mm | 75mm | 75mm | 90mm | 90mm | 100mm | 100mm | 100mm | 100mm | 110mm | 110mm | 110mm | 110mm | 110mm |
Published Sizing Recommendations
Height | — | 142 cm to 155 cm | — | 155 cm to 163 cm | — | 163 cm to 170 cm | — | 170 cm to 175 cm | — | 175 cm to 180 cm | — | 180 cm to 188 cm | 15 ft 0 in to 15 ft 8 in | — | 188 cm to 196 cm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Performance RoadSource:https://www.specialized.com/us/en/tarmac-sl8-pro-ultegra-di2/p/4274935?color=5430657-4274935, https://www.specialized.com/it/it/tarmac-sl8-pro-shimano-ultegra-di2/p/4221576?color=5460161-4221576, adsf