2025 Trek Fuel EX Gen 6 vs 2026 Revel Rascal Frame Kit
The S is the Revel Rascal Frame Kit size closest to your XS Trek Fuel EX Gen 6. 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 Revel Rascal Frame Kit
Compared with the Trek Fuel EX Gen 6 in XS, the Revel Rascal Frame Kit in S places the top of the head tube 36 mm higher and 26 mm further forward, relative to the bottom bracket. Its wheelbase is 36 mm longer, which can contribute to stability at speed.
- Frame stack
- +36 mm
- Higher front end
- Frame reach
- +26 mm
- Longer frame reach
- Wheelbase
- +36 mm
- Longer: steadier at speed
- Head angle
- −0.1°
- About the same head angle
- Chainstays
- +2 mm
- About the same
The two frames
Only the Trek Fuel EX Gen 6 is drawn. The Revel Rascal Frame Kit numbers we have for size S are missing the seat angle.
Geometry side by side
| Measurement | Trek Fuel EX Gen 6 XS | Revel Rascal Frame Kit S | Difference |
|---|---|---|---|
| Reach | 404 | 430mm | +26 mm |
| Stack | 572 | 608mm | +36 mm |
| Head tube angle | 64.9° | 64.8° | −0.1° |
| Seat tube angle | 78.9° | not listed | |
| Effective top tube | 516 | 584mm | +68 mm |
| Chainstay length | 434 | 436mm | +2 mm |
| Wheelbase | 1144 | 1180mm | +36 mm |
| BB drop | 21 | 31.2mm | +10 mm |
| BB height | 337 | 348mm | +11 mm |
| Standover | 720 | 719mm | −1 mm |
| Seat tube length | 360 | 385mm | +25 mm |
| Head tube length | 95 | 90mm | −5 mm |
| Fork length | not listed | 566mm |
Differences are the Revel Rascal Frame Kit minus the Trek Fuel EX Gen 6. Full charts: 2025 Trek Fuel EX Gen 6, 2026 Revel Rascal Frame Kit.
Where each sits in its class
Trek Fuel EX Gen 6Revel Rascal Frame Kit
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 EX Gen 6 | Revel Rascal Frame KitFrame Kit |
|---|---|---|
| Frame | not listed | Revel Rascal |
| Rear shock | not listed | RockShox SDLX Ultimate |
| Headset | not listed | Cane Creek 40 Series |
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