2025 TanTan Cycling (Seraph) FM301 Base 560
Build
700C/29 in × 35 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 567mm |
| Reach | 389mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-TTT | 525mm |
| Top Tube Length, Effective/Horizontal HT Top | 559mm |
| Top Tube Slope | 4.7deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73.3deg |
| Head Tube Length | 151mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 276mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 587mm |
| Front-Center Horizontal | 583mm |
| Wheelbase | 987mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 380mm |
| Trail | 55.6mm mid/neutral |
| Mechanical Trail | 53.3mm |
| Wheel Flop | 15.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 71mm |
| 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 | 1679mm |
| 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