2026 TanTan Cycling (Seraph) TT-X68 Base 56
Build
700mm BSD × 28 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of TanTan Cycling (Seraph) TT-X68
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 562mm |
| Reach | 388mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, Unknown | 510mm |
| Top Tube Length, Effective/Horizontal Unknown | 555mm |
| Top Tube Slope | 7.8deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 148mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 306mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.6mm |
| Front-Center | 595.7mm |
| Front-Center Horizontal | 591.4mm |
| Wheelbase | 995mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 370mm |
| Trail | 68.5mm high |
| Mechanical Trail | 65.5mm |
| Wheel Flop | 19.2mm |
| Standover Height | 785mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 47.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 136mm |
Base Build
| Wheel Size | 700mm BSD |
| Tire Width | 28mm |
| Tire Outer Diameter | 756mm |
| Bike Length with Tires | 1751mm |
| Crank Length | 170mm |
| Handlebar Width | 400mm |
| Stem Length | 90mm |
| Stem Angle | -7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:www.tantanbicycles.com