2023 Trek Bikes Trek marlin 8 3Gen Base 21.5"
Build
29mm BSD × 2.4 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Trek Bikes Trek marlin 8 3Gen
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 637mm |
| Reach | 495mm |
| Stack to Reach Ratio | 1.29:1 |
| Seat Tube Length, Effective Unknown | 500mm |
| Top Tube Length, Effective/Horizontal Center | 678mm |
| Head Tube Angle | 66.5deg |
| Seat Tube Angle | 73.4deg |
| Head Tube Length | 135mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 15.5mm |
| Chainstay Length | 438mm |
| Chainstay Length Horizontal | 433.9mm |
| Front-Center | 798.4mm |
| Front-Center Horizontal | 796.1mm |
| Wheelbase | 1230mm |
| Fork Offset/Rake | 46mm |
| Trail | -17.3mm |
| Mechanical Trail | -15.9mm |
| Wheel Flop | -6.3mm |
| Standover Height | 791mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 552.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | -154.5mm |
Base Build
| Wheel Size | 29mm BSD |
| Tire Width | 2.4in |
| Tire Outer Diameter | 150.9mm |
| Bike Length with Tires | 1380.9mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/cross-country-mountain-bikes/marlin/marlin-8-gen-3/p/36969/