2018 Giant Bicycles Fathom 2 S
Build
650B/27.5 in × 2.25 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail trail mtb bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 588mm |
| Reach | 411mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 390mm |
| Top Tube Length, Effective/Horizontal HT Top | 585mm |
| Top Tube Slope | 22.3deg |
| Head Tube Angle | 67deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 45mm |
| Bottom Bracket Height | 304.2mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 422.6mm |
| Front-Center | 687.9mm |
| Front-Center Horizontal | 686.4mm |
| Wheelbase | 1109mm |
| Fork Offset/Rake | 42mm |
| Trail | 102.6mm very high |
| Mechanical Trail | 94.4mm |
| Wheel Flop | 36.9mm |
| Standover Height | 714mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 168.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 134.2mm |
2 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 698.3mm |
| Bike Length with Tires | 1807.3mm |
| Crank Length | 170mm |
| Handlebar Width | 780mm |
| Stem Length | 50mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | 25% |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://www.giant-bicycles.com/us/fathom-2-2018