2025 YT Izzo Core vs 2026 GT Sensor ST Carbon Pro
The L is the GT Sensor ST Carbon Pro size closest to your XL YT Izzo 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 GT Sensor ST Carbon Pro
Compared with the YT Izzo Core in XL, the GT Sensor ST Carbon Pro in L places the top of the head tube 3 mm higher and 7 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm longer, which can contribute to stability at speed.
- Frame stack
- +3 mm
- Higher front end
- Frame reach
- −7 mm
- Shorter frame reach
- Wheelbase
- +6 mm
- Longer: steadier at speed
- Head angle
- −0.6°
- Slacker: calmer steering
- Chainstays
- n/a
- One of the bikes has no number for this
The two frames
Only the YT Izzo Core is drawn. The GT Sensor ST Carbon Pro numbers we have for size L are missing the chainstay length.
Geometry side by side
| Measurement | YT Izzo Core XL | GT Sensor ST Carbon Pro L | Difference |
|---|---|---|---|
| Reach | 492 | 485 | −7 mm |
| Stack | 635 | 638 | +3 mm |
| Head tube angle | 66 | 65.4 | −0.6° |
| Seat tube angle | 77 | 77.4 | +0.4° |
| Chainstay length | 437 | not listed | |
| Wheelbase | 1240 | 1246 | +6 mm |
| BB drop | 40 | not listed | |
| Effective top tube | not listed | 627 | |
| Standover | not listed | 731 | |
| Seat tube length | not listed | 420 |
Differences are the GT Sensor ST Carbon Pro minus the YT Izzo Core. Full charts: 2025 YT Izzo Core, 2026 GT Sensor ST Carbon Pro.
Where each sits in its class
YT Izzo CoreGT Sensor ST Carbon Pro
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 Izzo CoreCore 1 | GT Sensor ST Carbon ProST Carbon Pro |
|---|---|---|
| Frame | YT IZZO | GT Sensor |
| Fork | Marzocchi Bomber Z2 | RockShox Pike Select+ |
| Rear shock | Marzocchi Bomber Inline | RockShox Deluxe Select+ |
| Shifter | Shimano Deore | SRAM NX Eagle |
| Derailleur | Shimano Deore | SRAM GX AXS |
| Cassette | Shimano Deore M6100 | SRAM PG |
| Crankset | Shimano Deore M512 | TruVativ Stylo |
| Bottom bracket | Shimano MT500PA | SRAM DUB BSA |
| Wheelset | Sun Ringlé SR329 Trail Comp | WTB KOM Trail |
| Tire | Maxxis Minion DHR II DD | Maxxis Dissector, Maxxis Rekon |
| Brake | Shimano Deore XT | SRAM G2 RSC |
| Handlebar | YT Handlebar 35 | GT Alloy Riser |
| Stem | YT Stem 35 | not listed |
| Grips | ODI Elite Motion V2.1 | GT Mushroom |
| Headset | Acros AZX | FSA 42 |
| Seatpost | YT Seatpost | GT DropKick |
| Saddle | YT Custom Design | WTB Silverado |
| Chain | not listed | SRAM NX Eagle |
| Rotor | not listed | SRAM G2 |
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