2025 TanTan Cycling (Seraph) gr045 Base L
Build
650B/27.5 in × 40 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 602.5mm |
| Reach | 408mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 522mm |
| Top Tube Length, Effective/Horizontal Unknown | 580mm |
| Top Tube Slope | 10.3deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 190mm |
| Bottom Bracket Drop | 69mm |
| Bottom Bracket Height | 263mm |
| Chainstay Length | 427mm |
| Chainstay Length Horizontal | 421.4mm |
| Front-Center | 659mm |
| Front-Center Horizontal | 655.6mm |
| Wheelbase | 1077mm |
| Fork Offset/Rake | 50.2mm |
| Fork Length, Unknown | 395mm |
| Trail | 67.4mm high |
| Mechanical Trail | 63.3mm |
| Wheel Flop | 21.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 157mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 93mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 664mm |
| Bike Length with Tires | 1741mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:http://www.tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1042