2025 Specialized Enduro Pro vs 2027 Trek Fuel MX 9.9 Gen 7
The L is the Trek Fuel MX 9.9 Gen 7 size closest to your S4 Specialized Enduro Pro. 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 Trek Fuel MX 9.9 Gen 7
Compared with the Specialized Enduro Pro in S4, the Trek Fuel MX 9.9 Gen 7 in L places the top of the head tube 12 mm higher and 5 mm further back, relative to the bottom bracket. Its wheelbase is 10 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −10 mm
- Shorter: quicker to change direction
- Head angle
- +0.3°
- Steeper: sharper steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Specialized Enduro Pro, S4Trek Fuel MX 9.9 Gen 7, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Enduro Pro S4 | Trek Fuel MX 9.9 Gen 7 L | Difference |
|---|---|---|---|
| Reach | 487mm | 482 | −5 mm |
| Stack | 629mm | 641 | +12 mm |
| Head tube angle | 63.9° | 64.2° | +0.3° |
| Seat tube angle | 76° | 77.0° | +1.0° |
| Effective top tube | 644 | 618 | −26 mm |
| Chainstay length | 442mm | 439 | −3 mm |
| Wheelbase | 1274mm | 1264 | −10 mm |
| BB height | 347 | 343 | −4 mm |
| Seat tube length | 440mm | 420 | −20 mm |
| Fork length | not listed | not listed | |
| Head tube length | 110 | 125 | +15 mm |
| BB drop | not listed | 31 | |
| Standover | not listed | 754 |
Differences are the Trek Fuel MX 9.9 Gen 7 minus the Specialized Enduro Pro. Full charts: 2025 Specialized Enduro Pro, 2027 Trek Fuel MX 9.9 Gen 7.
Where each sits in its class
Specialized Enduro ProTrek Fuel MX 9.9 Gen 7
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 | Specialized Enduro ProPro | Trek Fuel MX 9.9 Gen 79.9 X0 AXS Gen 7 |
|---|---|---|
| Frame | Specialized Enduro | not listed |
| Fork | RockShox Zeb Ultimate | RockShox ZEB B1 Ultimate |
| Rear shock | RockShox Vivid Ultimate | RockShox Vivid D1 Ultimate |
| Shifter | SRAM Pod Controller | SRAM Pod Controller |
| Derailleur | SRAM X0 Eagle Transmission | SRAM X0 Eagle AXS |
| Cassette | SRAM X0 Eagle Transmission | SRAM X0 Eagle Transmission |
| Chain | SRAM X0 Eagle Transmission | SRAM X0 Eagle |
| Crankset | SRAM X0 Eagle | SRAM X0 Eagle |
| Chainring | SRAM 32T | not listed |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Roval Traverse HD | Bontrager Line Pro 30 |
| Tire | Specialized Butcher | Maxxis Minion DHR II |
| Hub | Specialized Industry 9, Industry Nine 1/1 | not listed |
| Rim | Roval Traverse HD | not listed |
| Brake | SRAM Maven, SRAM Maven Silver | SRAM Maven |
| Rotor | SRAM HS2 | SRAM HS2 |
| Handlebar | Roval Traverse SL | Race Face ERA |
| Stem | Specialized Industry 9 Moutain | Race Face Turbine |
| Grips | Deity Lockjaw | Trek Line Elite |
| Dropper post | BikeYoke Revive Max | not listed |
| Seatpost | BikeYoke Revive Max | Fox Transfer Neo |
| Saddle | Specialized Bridge Expert | Trek Aeolus |
| Battery | not listed | SRAM AXS |
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