2026 Specialized Turbo Levo 4 LTD vs 2027 Trek Fuel+ MX 9.9 Gen 2
The L is the Trek Fuel+ MX 9.9 Gen 2 size closest to your S4 Specialized Turbo Levo 4 LTD. 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 2
Compared with the Specialized Turbo Levo 4 LTD in S4, the Trek Fuel+ MX 9.9 Gen 2 in L places the top of the head tube 3 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.
- Frame stack
- +3 mm
- Higher front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +12 mm
- Longer: steadier at speed
- Head angle
- −0.3°
- About the same head angle
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Turbo Levo 4 LTD, S4Trek Fuel+ MX 9.9 Gen 2, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Turbo Levo 4 LTD S4 | Trek Fuel+ MX 9.9 Gen 2 L | Difference |
|---|---|---|---|
| Reach | 480mm | 482 | +2 mm |
| Stack | 638mm | 641 | +3 mm |
| Head tube angle | 64.5° | 64.2° | −0.3° |
| Seat tube angle | 77° | 77.0° | ±0.0° |
| Effective top tube | 627mm | 619 | −8 mm |
| Chainstay length | 435mm | 440 | +5 mm |
| Wheelbase | 1254mm | 1266 | +12 mm |
| BB drop | 29.5mm | 31 | +2 mm |
| BB height | 350mm | 343 | −7 mm |
| Standover | 753mm | 755 | +2 mm |
| Seat tube length | 425mm | 420 | −5 mm |
| Head tube length | 117mm | 125 | +8 mm |
Differences are the Trek Fuel+ MX 9.9 Gen 2 minus the Specialized Turbo Levo 4 LTD. Full charts: 2026 Specialized Turbo Levo 4 LTD, 2027 Trek Fuel+ MX 9.9 Gen 2.
Where each sits in its class
Specialized Turbo Levo 4 LTDTrek Fuel+ MX 9.9 Gen 2
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 Turbo Levo 4 LTDS-Works LTD | Trek Fuel+ MX 9.9 Gen 29.9 X0 AXS Gen 2 |
|---|---|---|
| Frame | Specialized S-Works Levo 4 | Trek OCLV |
| Fork | Fox Podium Factory | RockShox ZEB B1 Ultimate |
| Rear shock | Fox FLOAT | RockShox Vivid D1 Ultimate |
| Shifter | SRAM Pod Controller Ultimate | SRAM Pod Controller |
| Derailleur | SRAM XX Eagle Transmission | SRAM X0 Eagle AXS |
| Cassette | SRAM XX Eagle Transmission | SRAM X0 Eagle Transmission |
| Chain | SRAM XX EagleTransmission Transmission | SRAM X0 Eagle |
| Chainring | SRAM Transmission | SRAM Transmission |
| Motor | Specialized 3.1 S-Works | TQ HPR60-DRV01 |
| Wheelset | Specialized Traverse HD I9 Hydra 2 | Bontrager Line Pro 30 |
| Tire | Specialized Butcher | Maxxis Assegai |
| Brake | Trickstuff Maxima | SRAM Maven |
| Handlebar | Race Face ERA | Race Face ERA |
| Stem | Specialized Industry 9 | Race Face Turbine |
| Grips | Deity Lockjaw grips | Trek Line Elite |
| Seatpost | Fox Transfer Neo | Fox Transfer Neo |
| Saddle | Specialized Power Pro Mirror | Trek Aeolus |
| Crankset | not listed | SRAM XX |
| Battery | not listed | TQ HPR 580Wh V01 |
| Rotor | not listed | SRAM HS2 |
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