Loading geometry
Shorter-travel and quicker than Fuel EX. It pedals toward XC and still descends like a modern downcountry bike in recent years.
Riders who want a fast 29er without Fuel EX travel. XC-curious trail riders.
| Size | Stack | Reach | Stack/reach | Stem | Bar | Crank | Dropper | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop | Wheel size |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | 570 mm | 417 mm | 1.37:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.5° | 76.0° | 435 mm | 1151 mm | 16 mm | 29" |
| M | 603 mm | 447 mm | 1.35:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.5° | 76.9° | 435 mm | 1188 mm | 32 mm | 29" |
| ML | 607 mm | 462 mm | 1.31:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.5° | 76.2° | 440 mm | 1210 mm | 32 mm | 29" |
| L | 612 mm | 477 mm | 1.28:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.5° | 75.9° | 440 mm | 1227 mm |
This year's studio shot is Top Fuel 9.8 Gen 4.
Same published geometry as 2025.
No verified spec sheet for 2026 or 2025.
No launch MSRP in the catalog yet.
First Ride: The Trek Top Fuel Gets Lightly Revised for 2025Pinkbike · 2024
2025 Trek Top Fuel Review | A shape-shifting short travel ...Flow Mountain Bike · 2024
Testing the 2025 Trek Top Fuel as a 120mm travel XC bikeFlow Mountain Bike · 2025Review: 2025 Trek Top FuelPinkbike · 2025
| 32 mm |
| 29" |
| XL | 630 mm | 507 mm | 1.24:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.5° | 75.2° | 445 mm | 1271 mm | 32 mm | 29" |
