2026 Specialized Turbo Levo 4 Alloy vs 2027 Trek Fuel+ MX 9.9 Gen 2
The M is the Trek Fuel+ MX 9.9 Gen 2 size closest to your S3 Specialized Turbo Levo 4 Alloy. 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 Alloy in S3, the Trek Fuel+ MX 9.9 Gen 2 in M places the top of the head tube at about the same height and about as far forward, relative to the bottom bracket. Its wheelbase is 11 mm longer, which can contribute to stability at speed.
- Frame stack
- +1 mm
- About the same height
- Frame reach
- +1 mm
- About the same reach
- Wheelbase
- +11 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 Alloy, S3Trek Fuel+ MX 9.9 Gen 2, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Turbo Levo 4 Alloy S3 | Trek Fuel+ MX 9.9 Gen 2 M | Difference |
|---|---|---|---|
| Reach | 455mm | 456 | +1 mm |
| Stack | 626mm | 627 | +1 mm |
| Head tube angle | 64.5° | 64.2° | −0.3° |
| Seat tube angle | 77° | 77.5° | +0.5° |
| Effective top tube | 599mm | 590 | −9 mm |
| Chainstay length | 435mm | 440 | +5 mm |
| Wheelbase | 1223mm | 1234 | +11 mm |
| BB drop | 29.5mm | 31 | +2 mm |
| BB height | 350mm | 343 | −7 mm |
| Standover | 754mm | 752 | −2 mm |
| Seat tube length | 405mm | 400 | −5 mm |
| Fork length | not listed | not listed | |
| Head tube length | 103mm | 110 | +7 mm |
Differences are the Trek Fuel+ MX 9.9 Gen 2 minus the Specialized Turbo Levo 4 Alloy. Full charts: 2026 Specialized Turbo Levo 4 Alloy, 2027 Trek Fuel+ MX 9.9 Gen 2.
Where each sits in its class
Specialized Turbo Levo 4 AlloyTrek 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 AlloyAlloy | Trek Fuel+ MX 9.9 Gen 29.9 X0 AXS Gen 2 |
|---|---|---|
| Frame | Specialized Levo 4 M5 | Trek OCLV |
| Fork | Marzocchi Bomber Z1 | RockShox ZEB B1 Ultimate |
| Rear shock | Specialized Marzocchi Bomber Inline | RockShox Vivid D1 Ultimate |
| Derailleur | SRAM Eagle 70 Transmission | SRAM X0 Eagle AXS |
| Cassette | Specialized XS-1270 | SRAM X0 Eagle Transmission |
| Chain | SRAM Eagle 70 Transmission | SRAM X0 Eagle |
| Crankset | SRAM S1000 | SRAM XX |
| Chainring | SRAM Transmission | SRAM Transmission |
| Motor | Specialized 3.1 | TQ HPR60-DRV01 |
| Tire | Specialized Butcher | Maxxis Assegai |
| Brake | SRAM DB8 Stealth | SRAM Maven |
| Dropper post | TranzX Dropper | not listed |
| Seatpost | TranzX Dropper | Fox Transfer Neo |
| Saddle | Specialized Bridge Saddle | Trek Aeolus |
| Shifter | not listed | SRAM Pod Controller |
| Battery | not listed | TQ HPR 580Wh V01 |
| Wheelset | not listed | Bontrager Line Pro 30 |
| Rotor | not listed | SRAM HS2 |
| Handlebar | not listed | Race Face ERA |
| Stem | not listed | Race Face Turbine |
| Grips | not listed | Trek Line Elite |
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