Bike-on-Bike
Default Config
Default Config
Insights
Somewhat aggressive stack and reach vs trend of endurance road bikes
Design deviates from other sizes of TanTan Cycling (Seraph) TT-X68
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Mondince FM126
Geometry
Stack | 501mm | 514mm +13mm |
Reach | 366mm | 375mm +9mm |
Stack to Reach Ratio | 1.37:1 | 1.37:1 |
Seat Tube Length, C-T | — | 445mm |
Seat Tube Length, Unknown | 433mm | — |
Top Tube Length, Effective/Horizontal Center | 496mm | 508mm +12mm |
Top Tube Slope | 9.8deg | 9.7deg -0.1deg |
Head Tube Angle | 70.5deg | 71.75deg +1.25deg |
Seat Tube Angle | 75.5deg | 75.5deg +0deg |
Head Tube Length | 99mm | 109mm +10mm |
Bottom Bracket Drop | 74mm | 72mm -2mm |
Bottom Bracket Height | 269mm | 271mm +2mm |
Chainstay Length | 410mm | 410mm +0mm |
Chainstay Length Horizontal | 403.3mm | 403.6mm +0.3mm |
Front-Center | 572mm | 574mm +2mm |
Front-Center Horizontal | 566.7mm | 569.4mm +2.7mm |
Wheelbase | 970mm | 973mm +3mm |
Fork Offset/Rake | 47mm | 47mm +0mm |
Fork Length (On-Axis) | — | 370mm |
Fork Length (Axle-To-Crown) | 370mm | — |
Trail | 71.6mm high | 63.6mm -8mm mid/neutral |
Mechanical Trail | 67.5mm | 60.4mm -7.1mm |
Wheel Flop | 22.5mm | 18.9mm -3.6mm |
Standover Height | 722mm | — |
Tire to Pedal Spindle | 64mm 165 mm cranks | 61mm -3mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 104mm 165 mm cranks | 101mm -3mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 32mm | 32mm +0mm |
Tire Outer Diameter | 686mm | 686mm +0mm |
Bike Length with Tires | 1656mm | 1659mm +3mm |
Crank Length | 165mm | — |
| 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://www.seraphbikes.com/superlight-disc-road-bike-frame-tt-x68-bsa-bottom-bracket-max-tire-70028c-with-integrated-handlebar-p5836624.html | https://mondincecycle.com/product/2026-one-piece-monocoque-eps-t1100-carbon-fiber-aero-road-bike-frame-fm126 |
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