2026 TanTan Cycling (Seraph) TT-X68 Base 56
Build
700C/29 in × 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 | 395mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 494mm |
| Top Tube Length, Effective/Horizontal HT Top | 562mm |
| Top Tube Slope | 9.4deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 157mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 267mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.6mm |
| Front-Center | 592mm |
| Front-Center Horizontal | 587.4mm |
| Wheelbase | 991mm |
| Fork Offset/Rake | 44mm |
| Fork Length (Axle-To-Crown) | 370mm |
| Trail | 54.5mm mid/neutral |
| Mechanical Trail | 52.3mm |
| Wheel Flop | 14.9mm |
| Standover Height | 785mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 97mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1669mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:tantanbikes.com