2025 YT Jeffsy CORE vs 2026 Revel Rascal Frame Kit
The L is the Revel Rascal Frame Kit size closest to your L 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 L, the Revel Rascal Frame Kit in L places the top of the head tube 5 mm lower and 5 mm further back, relative to the bottom bracket. Its wheelbase is 11 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −5 mm
- Lower front end
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- −11 mm
- Shorter: quicker to change direction
- Head angle
- −0.2°
- About the same head angle
- Chainstays
- −1 mm
- About the same
The two frames
Only the YT Jeffsy CORE is drawn. The Revel Rascal Frame Kit numbers we have for size L are missing the seat angle.
Geometry side by side
| Measurement | YT Jeffsy CORE L | Revel Rascal Frame Kit L | Difference |
|---|---|---|---|
| Reach | 475 | 470mm | −5 mm |
| Stack | 627 | 622mm | −5 mm |
| Head tube angle | 65 | 64.8° | −0.2° |
| Seat tube angle | 77.2 | not listed | |
| Chainstay length | 437 | 436mm | −1 mm |
| Wheelbase | 1238 | 1227mm | −11 mm |
| BB drop | 33 | 31.2mm | −2 mm |
| Effective top tube | not listed | 627mm | |
| BB height | not listed | 348mm | |
| Standover | not listed | 730mm | |
| Seat tube length | not listed | 445mm | |
| Fork length | not listed | 566mm | |
| Head tube length | not listed | 104mm |
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 |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
