2026 Transition Smuggler Carbon vs 2025 YT Jeffsy CORE
The XXL is the YT Jeffsy CORE size closest to your XL Transition Smuggler Carbon. 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 YT Jeffsy CORE
Compared with the Transition Smuggler Carbon in XL, the YT Jeffsy CORE in XXL places the top of the head tube 7 mm higher and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.
- Frame stack
- +7 mm
- Higher front end
- Frame reach
- +5 mm
- Longer frame reach
- Wheelbase
- +12 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +2 mm
- About the same
The two frames
Transition Smuggler Carbon, XLYT Jeffsy CORE, XXLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Transition Smuggler Carbon XL | YT Jeffsy CORE XXL | Difference |
|---|---|---|---|
| Reach | 510 | 515 | +5 mm |
| Stack | 635 | 642 | +7 mm |
| Head tube angle | 65 | 65 | ±0.0° |
| Seat tube angle | 77.6 | 77.2 | −0.4° |
| Effective top tube | 645 | not listed | |
| Chainstay length | 440 | 442 | +2 mm |
| Wheelbase | 1277 | 1289 | +12 mm |
| BB drop | 35 | 33 | −2 mm |
| BB height | 340 | not listed | |
| Seat tube length | 460 | not listed | |
| Head tube length | 130 | not listed |
Differences are the YT Jeffsy CORE minus the Transition Smuggler Carbon. Full charts: 2026 Transition Smuggler Carbon, 2025 YT Jeffsy CORE.
Where each sits in its class
Transition Smuggler CarbonYT Jeffsy CORE
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 | Transition Smuggler CarbonCarbon Deore | YT Jeffsy CORECORE 1 |
|---|---|---|
| Frame | Transition Smuggler | not listed |
| Fork | RockShox Pike Select+ | Marzocchi Bomber Z1 |
| Rear shock | RockShox Deluxe Select+ | Marzocchi Bomber Air |
| Shifter | SRAM Eagle 90 Transmission | Shimano Deore |
| Cassette | SRAM Eagle 90 Transmission | Shimano Deore M6100 |
| Crankset | SRAM Eagle 90 Transmission | Shimano Deore M512 |
| Wheelset | DT Swiss M1900 | Sun Ringlé SR329 Trail Comp |
| Tire | Maxxis Assegai, Maxxis Dissector | Maxxis Minion DHF, Maxxis Minion DHR II DD |
| Brake | SRAM Motive Bronze | SRAM DB8 Stealth |
| Rotor | SRAM CenterLine | not listed |
| Handlebar | ANVL Mandrel Alloy 35 | YT Handlebar 35 |
| Stem | ANVL Swage | YT Stem 35 |
| Derailleur | not listed | Shimano Deore |
| Bottom bracket | not listed | Shimano MT501 |
| Grips | not listed | ODI Elite Motion V2.1 |
| Headset | not listed | Cane Creek Series 10 |
| Seatpost | not listed | YT Seatpost |
| Saddle | not listed | YT Custom Design |
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