2027 Santa Cruz Bullit vs 2027 Trek Fuel+ MX 9.9 Gen 2
The XXL is the Trek Fuel+ MX 9.9 Gen 2 size closest to your XXL Santa Cruz Bullit. 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 Santa Cruz Bullit in XXL, the Trek Fuel+ MX 9.9 Gen 2 in XXL places the top of the head tube 6 mm lower and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 14 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −6 mm
- Lower front end
- Frame reach
- +5 mm
- Longer frame reach
- Wheelbase
- −14 mm
- Shorter: quicker to change direction
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Santa Cruz Bullit, XXLTrek Fuel+ MX 9.9 Gen 2, XXLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Santa Cruz Bullit XXL | Trek Fuel+ MX 9.9 Gen 2 XXL | Difference |
|---|---|---|---|
| Reach | 522 | 527 | +5 mm |
| Stack | 674 | 668 | −6 mm |
| Head tube angle | 63.6/63.3 | 64.2° | |
| Seat tube angle | 78.3 | 76.1° | −2.2° |
| Effective top tube | 670 | 682 | +12 mm |
| Chainstay length | 452 | 449 | −3 mm |
| Wheelbase | 1346 | 1332 | −14 mm |
| BB height | 342 | 343 | +1 mm |
| Standover | 730 | 769 | +39 mm |
| Seat tube length | 500 | 475 | −25 mm |
| Head tube length | 155 | 155 | ±0 mm |
| BB drop | not listed | 31 |
Differences are the Trek Fuel+ MX 9.9 Gen 2 minus the Santa Cruz Bullit. Full charts: 2027 Santa Cruz Bullit, 2027 Trek Fuel+ MX 9.9 Gen 2.
Where each sits in its class
Santa Cruz BullitTrek 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 | Santa Cruz Bullit90 | Trek Fuel+ MX 9.9 Gen 29.9 X0 AXS Gen 2 |
|---|---|---|
| Fork | Fox 38 Float Performance | RockShox ZEB B1 Ultimate |
| Rear shock | Fox Float X Performance | RockShox Vivid D1 Ultimate |
| Shifter | SRAM 90 Eagle Transmission | SRAM Pod Controller |
| Derailleur | SRAM 90 Eagle Transmission | SRAM X0 Eagle AXS |
| Cassette | SRAM GX Eagle Transmission | SRAM X0 Eagle Transmission |
| Chain | SRAM GX Eagle Transmission | SRAM X0 Eagle |
| Crankset | e*thirteen Helix Core e*spec All Sizes: | SRAM XX |
| Motor | Bosch Performance CX BDU38 | TQ HPR60-DRV01 |
| Battery | Bosch PowerTube Battery | TQ HPR 580Wh V01 |
| Tire | Maxxis Assegai, Maxxis Minion DHR II | Maxxis Assegai |
| Hub | DT Swiss 370 | not listed |
| Rim | Reserve 30|HD AL | not listed |
| Brake | SRAM Maven Base | SRAM Maven |
| Rotor | SRAM HS2 | SRAM HS2 |
| Stem | OneUp Components Enduro Stem All Sizes: | Race Face Turbine |
| Headset | FSA IS-2/47/42 ACB | not listed |
| Dropper post | SDG Tellis Dropper | not listed |
| Saddle | SDG Bel-Air V3 Max Lux-Alloy | Trek Aeolus |
| Frame | not listed | Trek OCLV |
| Chainring | not listed | SRAM Transmission |
| Wheelset | not listed | Bontrager Line Pro 30 |
| Handlebar | not listed | Race Face ERA |
| Grips | not listed | Trek Line Elite |
| Seatpost | not listed | Fox Transfer Neo |
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