Overview
The YT Izzo is YT Industries’ short-travel trail bike, sitting below the Jeffsy in YT’s mountain bike lineup. With 140mm of front travel and 130mm of rear travel, the Izzo is built for riders who want a fast, efficient trail bike that can still handle technical descents with confidence. The 2025 Izzo features an all-carbon frame across the range, a two-position flip chip, and five sizes (SM through XXL) — all delivered direct-to-consumer at YT’s characteristically competitive pricing.
New to bike geometry? Our complete guide to mountain bike geometry explains every measurement and what it means for your riding. You can also learn how to read a geometry chart to compare this bike against other models.
The Izzo’s geometry is aggressive for its travel class: a 65.7° head angle in the slack position (65.8° on XL/XXL), seat tube angles from 76.1° to 76.6°, and reach spanning 424mm (SM) to 508mm (XXL). The 338mm BB height (36mm drop) is notably low for a 130mm-travel bike, contributing to a planted, confidence-inspiring feel. Chainstay lengths range from 432mm on smaller sizes to 437mm on XL/XXL, keeping the handling proportional. The 29-inch wheels and short-travel suspension create a bike that’s quick, responsive, and climbs with authority.
Geometry Diagram
Geometry Table
| Measurement | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|
| Head Tube Angle | 65.7° | 65.7° | 65.7° | 65.8° | 65.8° |
| Seat Tube Angle (eff.) | 76.6° | 76.5° | 76.4° | 76.2° | 76.1° |
| Reach | 424mm | 445mm | 467mm | 487mm | 508mm |
| Stack | 607mm | 616mm | 625mm | 639mm | 648mm |
| Wheelbase | 1170mm | 1195mm | 1221mm | 1251mm | 1277mm |
| Chainstay Length | 432mm | 432mm | 432mm | 437mm | 437mm |
| BB Height | 338mm | 338mm | 338mm | 338mm | 338mm |
| BB Drop | 36mm | 36mm | 36mm | 36mm | 36mm |
| Head Tube Length | 95mm | 105mm | 115mm | 130mm | 140mm |
| Seat Tube Length | 380mm | 410mm | 430mm | 460mm | 490mm |
| Trail | 113mm | 113mm | 113mm | 112mm | 112mm |
Geometry Analysis
The Izzo’s 65.7° head angle is impressively slack for a 130mm-travel bike, putting it in the same ballpark as many 150mm trail bikes from recent years. This gives the Izzo considerably more descending confidence than traditional short-travel bikes. The seat tube angles (76.1–76.6°) are slightly more relaxed than the Jeffsy’s (76.9–78.6°), which is somewhat surprising for the shorter-travel bike — riders will want to run their saddle forward on the rails for maximum climbing efficiency. The 338mm BB height and 36mm BB drop are aggressive numbers that place the rider’s center of gravity low for excellent cornering stability, though pedal strikes can occur on rough, rocky terrain. Reach figures are well-spaced with approximately 20mm between sizes, providing good options across the height range.
Ride Characteristics
The Izzo is a bike that punches above its travel class on descents while maintaining the efficiency that short-travel riders demand on climbs. The 130mm of rear travel is remarkably well-managed — the suspension feels active and supportive over small bumps while resisting harsh bottom-outs on bigger features. The carbon frame is stiff and responsive, translating pedal input directly into forward motion. On climbs, the Izzo is noticeably quicker and lighter than the Jeffsy, making it the better choice for ride days that involve significant elevation gain. On descents, the slack head angle and low BB create a surprisingly stable platform that handles technical singletrack, roots, and moderate rock gardens with composure. The shorter chainstays and lower overall weight make the Izzo playful and poppy — it’s a bike that rewards creative line choices and encourages getting airborne off natural features.
Key Specs
Frame: Carbon (CF). Wheel Size: 29″. Travel: 140mm fork / 130mm rear. Sizes: SM, MD, LG, XL, XXL. Flip Chip: ±0.4° HA adjustment. Drivetrain: SRAM GX/X0 Eagle or Shimano XT. Fork: RockShox Pike / FOX 34. Shock: RockShox Deluxe / FOX Float. UDH Compatible.
What’s New vs Previous Generation
The 2025 Izzo continues the current-generation platform with spec-level updates. The carbon frame and geometry are carried over, with updates focusing on SRAM Eagle Transmission compatibility (UDH), revised suspension tunes, and updated colorways. The Izzo remains carbon-only (unlike the Jeffsy and Capra, which offer aluminum options), reflecting YT’s positioning of the Izzo as a performance-focused trail bike where weight savings are paramount.
Who Should Consider This Bike
The Izzo is ideal for riders who value climbing efficiency and low weight but don’t want to sacrifice descending confidence. It’s the right choice if your local trails are more flowy than gnarly, if you regularly ride 30+ kilometer loops, or if you’re coming from an XC background and want a trail bike that doesn’t feel sluggish. The Izzo also suits riders who find the Jeffsy too much bike for their typical terrain — it’s faster on the uphills and mellower trails, only giving ground to the Jeffsy on the roughest, steepest descents.
Comparable Models
The Izzo competes with the Santa Cruz Tallboy (130/120mm), Yeti SB120 (130/120mm), Trek Fuel EX (140/130mm), Specialized Stumpjumper 15 (140/130mm), and Norco Optic (140/125mm). The Izzo offers slightly more travel than the Tallboy and SB120, making it a touch more capable on rough terrain. The Trek Fuel EX and Stumpjumper 15 are the closest competitors by travel numbers. YT’s direct pricing gives the Izzo a significant spec-for-dollar advantage, with builds typically offering one or two component tiers higher than similarly priced retail competitors.
Related Geometry
More YT geometry: YT Capra 2025 Geometry, YT Capra 27.5 2020 Geometry, YT Capra 29 2020 Geometry, YT Decoy 2025 Geometry, YT Decoy 27.5 2020 Geometry.
Compare xc bikes: 2023 Giant Anthem Geometry, Giant Anthem 2026 Geometry, Giant Anthem 29 2020 Geometry.
Frequently Asked Questions
Is the YT Izzo good for cross-country racing?
While the Izzo is fast and efficient, it’s a trail bike, not a dedicated XC race bike. At 130mm of rear travel with a 65.7° head angle, it’s more capable on technical terrain than an XC bike but heavier and not as pure in terms of climbing speed. For XC racing, a dedicated XC bike would be more appropriate.
What is the difference between the YT Izzo and YT Jeffsy?
The Izzo (140/130mm, 65.7° HA) is the shorter-travel trail option, lighter and more efficient on climbs. The Jeffsy (150/145mm, 65.0° HA) is the all-mountain bike with more travel and slacker geometry for more aggressive terrain. Choose the Izzo for fitness-focused rides and flowy trails; choose the Jeffsy for rougher terrain and bigger descents.
Does the YT Izzo come in aluminum?
No. The 2025 Izzo is only available with a carbon frame. If you prefer aluminum, the YT Jeffsy AL offers an aluminum frame option with more travel (150/145mm).
What wheel size does the YT Izzo use?
The Izzo uses 29-inch wheels across all sizes. Unlike the Capra and Jeffsy, there is no MX (mullet) option available for the Izzo.
How does the flip chip work on the YT Izzo?
The Izzo’s flip chip offers ±0.4° of head angle adjustment. The Low (slack) setting provides a 65.7° head angle for more descending stability, while the High (steep) setting steepens the angle for quicker steering on mellower terrain. The flip chip also adjusts BB height and seat tube angle slightly.