2025 TanTan Cycling (Seraph) GR208 Base S
Build
700C/29 in × 42 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 546mm |
| Reach | 369mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 450mm |
| Top Tube Length, Effective/Horizontal Unknown | 525mm |
| Top Tube Slope | 13deg |
| Head Tube Angle | 69.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 278mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 423.4mm |
| Front-Center | 603mm |
| Front-Center Horizontal | 598.6mm |
| Wheelbase | 1022mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 401mm |
| Trail | 78.6mm high |
| Mechanical Trail | 73.6mm |
| Wheel Flop | 25.8mm |
| Standover Height | 768mm |
| Tire to Pedal Spindle Distance With 165 mm cranks | 85mm |
| Pedal Spindle to Ground Clearance With 165 mm cranks | 113mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1728mm |
| Crank Length | 165mm |
| Handlebar Width | 380mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.instagram.com/p/DKyMhy-JDSU/?hl=en&img_index=2