Bike-on-Bike
Insights
Somewhat aggressive stack and reach vs trend of endurance road bikes
Somewhat aggressive stack and reach vs trend of endurance road bikes
Geometry
Stack | 534mm | 544mm +10mm |
Reach | 387mm | 384mm -3mm |
Stack to Reach Ratio | 1.38:1 | 1.42:1 |
Seat Tube Length, C-T | 500mm | — |
Seat Tube Length, Unknown | — | 473mm |
Top Tube Length, Effective/Horizontal Center | 540mm | 541mm +1mm |
Top Tube Length, Actual C-C | 527.4mm | — |
Top Tube Slope | 5.8deg | 9.9deg +4.1deg |
Head Tube Angle | 73deg | 73deg +0deg |
Seat Tube Angle | 74deg | 74deg +0deg |
Head Tube Length | 130mm | 137mm +7mm |
Bottom Bracket Drop | 70mm | 72mm +2mm |
Bottom Bracket Height | 269mm | 265mm -4mm |
Chainstay Length | 415mm | 410mm -5mm |
Chainstay Length Horizontal | 409.1mm | 403.6mm -5.5mm |
Front-Center | 580.2mm | 579mm -1.2mm |
Front-Center Horizontal | 576mm | 574.4mm -1.6mm |
Wheelbase | 985mm | 978mm -7mm |
Fork Offset/Rake | 45mm | 44mm -1mm |
Fork Length, Unknown | — | 370mm |
Trail | 56.6mm mid/neutral | 57mm +0.4mm mid/neutral |
Mechanical Trail | 54.1mm | 54.5mm +0.4mm |
Wheel Flop | 15.8mm | 15.9mm +0.1mm |
Standover Height | 776mm | 768mm -8mm |
Tire to Pedal Spindle | 71.2mm 170 mm cranks | 69.5mm -1.7mm 172.5 mm cranks |
Pedal Spindle to Ground Clearance | 99mm 170 mm cranks | 92.5mm -6.5mm 172.5 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 28mm | 26mm -2mm |
Tire Outer Diameter | 678mm | 674mm -4mm |
Bike Length with Tires | 1663mm | 1652mm -11mm |
Crank Length | 170mm | 172.5mm +2.5mm |
Handlebar Width | 400mm | 420mm +20mm |
Stem Length | 100mm | 100mm +0mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Carbon/Composite | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://bikesonline.com/products/2025-polygon-strattos-s8x-carbon-endurance-road-bike?variant=49874212520228 | https://www.specialized.com/au/en/tarmac-sl8-expert/p/216955?color=349992-216955 |
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