2025 YT Jeffsy CORE vs 2026 Revel Rascal Frame Kit
The XXL is the Revel Rascal Frame Kit size closest to your XXL YT Jeffsy CORE. 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 YT Jeffsy CORE in XXL, the Revel Rascal Frame Kit in XXL places the top of the head tube 12 mm higher and 12 mm further forward, relative to the bottom bracket. Its wheelbase is 9 mm longer, which can contribute to stability at speed.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- +12 mm
- Longer frame reach
- Wheelbase
- +9 mm
- Longer: steadier at speed
- Head angle
- −0.2°
- About the same head angle
- Chainstays
- −6 mm
- Shorter: livelier
The two frames
Only the YT Jeffsy CORE is drawn. The Revel Rascal Frame Kit numbers we have for size XXL are missing the seat angle.
Geometry side by side
| Measurement | YT Jeffsy CORE XXL | Revel Rascal Frame Kit XXL | Difference |
|---|---|---|---|
| Reach | 515 | 527mm | +12 mm |
| Stack | 642 | 654mm | +12 mm |
| Head tube angle | 65 | 64.8° | −0.2° |
| Seat tube angle | 77.2 | not listed | |
| Chainstay length | 442 | 436mm | −6 mm |
| Wheelbase | 1289 | 1298mm | +9 mm |
| BB drop | 33 | 31.2mm | −2 mm |
| Effective top tube | not listed | 680mm | |
| BB height | not listed | 348mm | |
| Standover | not listed | 762mm | |
| Seat tube length | not listed | 475mm | |
| Fork length | not listed | 566mm | |
| Head tube length | not listed | 115mm |
Differences are the Revel Rascal Frame Kit minus the YT Jeffsy CORE. Full charts: 2025 YT Jeffsy CORE, 2026 Revel Rascal Frame Kit.
Where each sits in its class
YT Jeffsy CORERevel 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 | YT Jeffsy CORECORE 1 | Revel Rascal Frame KitFrame Kit |
|---|---|---|
| Fork | Marzocchi Bomber Z1 | not listed |
| Rear shock | Marzocchi Bomber Air | RockShox SDLX Ultimate |
| Shifter | Shimano Deore | not listed |
| Derailleur | Shimano Deore | not listed |
| Cassette | Shimano Deore M6100 | not listed |
| Crankset | Shimano Deore M512 | not listed |
| Bottom bracket | Shimano MT501 | not listed |
| Wheelset | Sun Ringlé SR329 Trail Comp | not listed |
| Tire | Maxxis Minion DHF, Maxxis Minion DHR II DD | not listed |
| Brake | SRAM DB8 Stealth | not listed |
| Handlebar | YT Handlebar 35 | not listed |
| Stem | YT Stem 35 | not listed |
| Grips | ODI Elite Motion V2.1 | not listed |
| Headset | Cane Creek Series 10 | Cane Creek 40 Series |
| Seatpost | YT Seatpost | not listed |
| Saddle | YT Custom Design | not listed |
| Frame | not listed | Revel Rascal |
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