2024 Trek Bikes Rail 9.8 Gen4 15.5 / S high
Build
700C/29 in × 2.6 in
Insights
Somewhat upright stack and reach vs trend of full-suspension all-mountain/enduro mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 625mm |
| Reach | 436mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-C | 410mm |
| Top Tube Length, Effective/Horizontal HT Top | 579mm |
| Head Tube Angle | 64.6deg |
| Seat Tube Angle | 71.2deg |
| Effective Seat Tube Angle, Unknown | 77.1deg |
| Head Tube Length | 105mm |
| Bottom Bracket Drop | 27mm |
| Bottom Bracket Height | 350mm |
| Chainstay Length | 447mm |
| Chainstay Length Horizontal | 446.2mm |
| Front-Center | 767.3mm |
| Front-Center Horizontal | 766.8mm |
| Wheelbase | 1213mm |
| Fork Offset/Rake | 42.3mm |
| Trail | 132.2mm very high |
| Mechanical Trail | 119.4mm |
| Wheel Flop | 51.2mm |
| Standover Height | 761mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 220.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 180mm |
9.8 Gen4 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.6in |
| Tire Outer Diameter | 754.1mm |
| Bike Length with Tires | 1967.1mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 160mm |
| Rear Travel | 150mm |
| Suspension Sag | Unknown |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
| Features | E-bike |
Source:https://www.trekbikes.com/at/de_AT/bikes/mountainbikes/e-mountainbikes/rail/rail-9-8-xt-gen-4/p/37027/?colorCode=yellow