2025 TanTan Cycling (Seraph) FM301 Base 580
Build
700C/29 in × 35 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of TanTan Cycling (Seraph) FM301
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 588mm |
| Reach | 394mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-TTT | 553mm |
| Top Tube Length, Effective/Horizontal HT Top | 574mm |
| Top Tube Slope | 4.1deg |
| Head Tube Angle | 73.8deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 171mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 276mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 596mm |
| Front-Center Horizontal | 592mm |
| Wheelbase | 996mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 380mm |
| Trail | 53.7mm mid/neutral |
| Mechanical Trail | 51.5mm |
| Wheel Flop | 14.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 80mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 106mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 35mm |
| Tire Outer Diameter | 692mm |
| Bike Length with Tires | 1688mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:http://www.tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1165