2025 YT Jeffsy CORE vs 2024 Knolly Fugitive
The S2 is the Knolly Fugitive size closest to your S 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 Knolly Fugitive
Compared with the YT Jeffsy CORE in S, the Knolly Fugitive in S2 places the top of the head tube 16 mm higher and 5 mm further forward, relative to the bottom bracket.
- Frame stack
- +16 mm
- Higher front end
- Frame reach
- +5 mm
- Longer frame reach
- Wheelbase
- n/a
- One of the bikes has no number for this
- Head angle
- n/a
- One of the bikes has no number for this
- Chainstays
- −7 mm
- Shorter: livelier
The two frames
Only the YT Jeffsy CORE is drawn. The Knolly Fugitive numbers we have for size S2 are missing the head angle, seat angle and wheelbase.
Geometry side by side
| Measurement | YT Jeffsy CORE S | Knolly Fugitive S2 | Difference |
|---|---|---|---|
| Reach | 435 | 440 | +5 mm |
| Stack | 613 | 629 | +16 mm |
| Head tube angle | 65 | not listed | |
| Seat tube angle | 77.2 | not listed | |
| Chainstay length | 437 | 430 | −7 mm |
| Wheelbase | 1191 | not listed | |
| BB drop | 33 | not listed |
Differences are the Knolly Fugitive minus the YT Jeffsy CORE. Full charts: 2025 YT Jeffsy CORE, 2024 Knolly Fugitive.
Where each sits in its class
YT Jeffsy COREKnolly Fugitive
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 | Knolly Fugitive125 XT |
|---|---|---|
| Fork | Marzocchi Bomber Z1 | Fox FLOAT X Factory |
| Rear shock | Marzocchi Bomber Air | Fox Float X Factory |
| Shifter | Shimano Deore | Shimano XT |
| Derailleur | Shimano Deore | Shimano XT |
| Cassette | Shimano Deore M6100 | Shimano XT |
| Crankset | Shimano Deore M512 | Shimano XT |
| Bottom bracket | Shimano MT501 | not listed |
| Wheelset | Sun Ringlé SR329 Trail Comp | DT Swiss M1900 |
| Tire | Maxxis Minion DHF, Maxxis Minion DHR II DD | Maxxis Assegai |
| Brake | SRAM DB8 Stealth | Shimano Deore XT |
| Handlebar | YT Handlebar 35 | Spank Spoon |
| Stem | YT Stem 35 | not listed |
| Grips | ODI Elite Motion V2.1 | not listed |
| Headset | Cane Creek Series 10 | FSA Orbit |
| Seatpost | YT Seatpost | not listed |
| Saddle | YT Custom Design | not listed |
| Frame | not listed | Knolly Fugitive |
| Rotor | not listed | Shimano SM-RT76 |
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