2025 YT Izzo Core vs 2026 Marin Rift Zone
The L is the Marin Rift Zone 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 Marin Rift Zone
Compared with the YT Izzo Core in XL, the Marin Rift Zone in L places the top of the head tube at about the same height and 7 mm further back, relative to the bottom bracket. Its wheelbase is 6 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +2 mm
- About the same height
- Frame reach
- −7 mm
- Shorter frame reach
- Wheelbase
- −6 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −7 mm
- Shorter: livelier
The two frames
YT Izzo Core, XLMarin Rift Zone, LDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | YT Izzo Core XL | Marin Rift Zone L | Difference |
|---|---|---|---|
| Reach | 492 | 485 | −7 mm |
| Stack | 635 | 637.3 | +2 mm |
| Head tube angle | 66 | 65.5 | −0.5° |
| Seat tube angle | 77 | 77 | ±0.0° |
| Chainstay length | 437 | 430 | −7 mm |
| Wheelbase | 1240 | 1234.4 | −6 mm |
| BB drop | 40 | 35 | −5 mm |
| Effective top tube | not listed | 632.1 | |
| BB height | not listed | 343 | |
| Standover | not listed | not listed | |
| Seat tube length | not listed | 425 | |
| Head tube length | not listed | 125 |
Differences are the Marin Rift Zone minus the YT Izzo Core. Full charts: 2025 YT Izzo Core, 2026 Marin Rift Zone.
Where each sits in its class
YT Izzo CoreMarin Rift Zone
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 | Marin Rift Zone2 |
|---|---|---|
| Frame | YT IZZO | Marin Rift Zone |
| Fork | Marzocchi Bomber Z2 | Marzocchi Bomber Z2 |
| Rear shock | Marzocchi Bomber Inline | Marzocchi Bomber Air inline |
| Shifter | Shimano Deore | Shimano Deore |
| Derailleur | Shimano Deore | Shimano Deore |
| Cassette | Shimano Deore M6100 | Shimano Deore M6100 |
| Crankset | Shimano Deore M512 | Marin forged alloy, 30T narrow-wide, 165mm |
| Bottom bracket | Shimano MT500PA | External sealed cartridge |
| Wheelset | Sun Ringlé SR329 Trail Comp | Marin double-wall alloy, 29mm inner, 32-hole, tubeless-compatible |
| Tire | Maxxis Minion DHR II DD | Maxxis Assegai |
| Brake | Shimano Deore XT | Tektro M5140 |
| Handlebar | YT Handlebar 35 | Marin mini-riser |
| Stem | YT Stem 35 | not listed |
| Grips | ODI Elite Motion V2.1 | Marin Grizzly |
| Headset | Acros AZX | not listed |
| Seatpost | YT Seatpost | not listed |
| Saddle | YT Custom Design | Marin Speed Concept |
| Chain | not listed | KMC X-12 |
| Chainring | not listed | Marin 30T narrow-wide |
| Rotor | not listed | Tektro 180mm front, 160mm rear |
| Dropper post | not listed | TranzX YSI60QL |
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