2026 Trek Fuel MX 9.9 Gen 7 vs 2024 Knolly Fugitive
The S4 is the Knolly Fugitive size closest to your L Trek Fuel MX 9.9 Gen 7. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Knolly Fugitive
Compared with the Trek Fuel MX 9.9 Gen 7 in L, the Knolly Fugitive in S4 places the top of the head tube 5 mm lower and 10 mm further forward, relative to the bottom bracket.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- +10 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- −1 mm
- About the same
The two frames
Only the Trek Fuel MX 9.9 Gen 7 is drawn. The Knolly Fugitive numbers we have for size S4 are missing the wheelbase.
Geometry side by side
| Measurement | Trek Fuel MX 9.9 Gen 7 L | Knolly Fugitive S4 | Difference |
|---|---|---|---|
| Reach | 482 | 492 | +10 mm |
| Stack | 641 | 636 | −5 mm |
| Head tube angle | 64.2° | 64.75 | +0.5° |
| Seat tube angle | 77.0° | 76.75 | −0.3° |
| Effective top tube | 618 | not listed | |
| Chainstay length | 439 | 438 | −1 mm |
| Wheelbase | 1264 | not listed | |
| BB drop | 31 | not listed | |
| BB height | 343 | not listed | |
| Standover | 754 | not listed | |
| Seat tube length | 420 | not listed | |
| Head tube length | 125 | not listed |
Differences are the Knolly Fugitive minus the Trek Fuel MX 9.9 Gen 7. Full charts: 2026 Trek Fuel MX 9.9 Gen 7, 2024 Knolly Fugitive.
Where each sits in its class
Trek Fuel MX 9.9 Gen 7Knolly Fugitive
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Fuel MX 9.9 Gen 79.9 X0 AXS Gen 7 | Knolly Fugitive125 XT |
|---|---|---|
| Fork | Fox 36 Factory | Fox FLOAT X Factory |
| Wheelset | Bontrager Line Pro 30 | DT Swiss M1900 |
| Tire | Maxxis Assegai/Minion DHR II | Maxxis Assegai |
| Handlebar | Race Face ERA | Spank Spoon |
| Frame | not listed | Knolly Fugitive |
| Rear shock | not listed | Fox Float X Factory |
| Shifter | not listed | Shimano XT |
| Derailleur | not listed | Shimano XT |
| Cassette | not listed | Shimano XT |
| Crankset | not listed | Shimano XT |
| Brake | not listed | Shimano Deore XT |
| Rotor | not listed | Shimano SM-RT76 |
| Headset | not listed | FSA Orbit |
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