2027 Trek Fuel+ MX 9.9 Gen 2 vs 2025 Santa Cruz Heckler SL
The L is the Santa Cruz Heckler SL size closest to your L Trek Fuel+ MX 9.9 Gen 2. 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 Santa Cruz Heckler SL
Compared with the Trek Fuel+ MX 9.9 Gen 2 in L, the Santa Cruz Heckler SL in L places the top of the head tube 6 mm lower and 4 mm further back, relative to the bottom bracket.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- −0.2°
- About the same head angle
- Chainstays
- +4 mm
- Longer: more planted
The two frames
Trek Fuel+ MX 9.9 Gen 2, LSanta Cruz Heckler SL, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Fuel+ MX 9.9 Gen 2 L | Santa Cruz Heckler SL L | Difference |
|---|---|---|---|
| Reach | 482 | 477.5 | −5 mm |
| Stack | 641 | 634.9 | −6 mm |
| Head tube angle | 64.2° | 64 | −0.2° |
| Seat tube angle | 77.0° | 77.2 | +0.2° |
| Effective top tube | 619 | not listed | |
| Chainstay length | 440 | 443.8 | +4 mm |
| Wheelbase | 1266 | 1262.7/1263.4 | |
| BB drop | 31 | not listed | |
| BB height | 343 | 341 | −2 mm |
| Standover | 755 | 733.4/729.3 | |
| Seat tube length | 420 | 430 | +10 mm |
| Head tube length | 125 | 120 | −5 mm |
Differences are the Santa Cruz Heckler SL minus the Trek Fuel+ MX 9.9 Gen 2. Full charts: 2027 Trek Fuel+ MX 9.9 Gen 2, 2025 Santa Cruz Heckler SL.
Where each sits in its class
Trek Fuel+ MX 9.9 Gen 2Santa Cruz Heckler SL
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 29.9 X0 AXS Gen 2 | Santa Cruz Heckler SLGX AXS |
|---|---|---|
| Frame | Trek OCLV | Santa Cruz Heckler SL |
| Fork | RockShox ZEB B1 Ultimate | Fox 36 Performance Elite Grip X2 |
| Rear shock | RockShox Vivid D1 Ultimate | Fox FLOAT X Performance Elite |
| Shifter | SRAM Pod Controller | SRAM Pod Controller |
| Derailleur | SRAM X0 Eagle AXS | SRAM GX Eagle AXS |
| Cassette | SRAM X0 Eagle Transmission | SRAM GX Eagle Transmission |
| Chain | SRAM X0 Eagle | SRAM GX Eagle Transmission |
| Crankset | SRAM XX | Race Face Aeffect R |
| Chainring | SRAM Transmission | not listed |
| Motor | TQ HPR60-DRV01 | Fazua Ride 60 |
| Battery | TQ HPR 580Wh V01 | Fazua 430 |
| Wheelset | Bontrager Line Pro 30 | Reserve 30|SL |
| Tire | Maxxis Assegai | Schwalbe Albert |
| Brake | SRAM Maven | SRAM Maven Bronze Stealth |
| Rotor | SRAM HS2 | SRAM HS2 |
| Handlebar | Race Face ERA | Santa Cruz e35 |
| Stem | Race Face Turbine | Burgtec Enduro MK3 |
| Grips | Trek Line Elite | Santa Cruz House |
| Seatpost | Fox Transfer Neo | not listed |
| Saddle | Trek Aeolus | SDG Bel-Air |
| Headset | not listed | Cane Creek 50 |
| Dropper post | not listed | OneUp Components dropper post |
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