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2021 YT Industries

Izzo CORE 4 29

A 29″ carbon frame full suspension trail bike with ultra high-end components.
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Manufacturer Price

$5,599
Weight28.2 lbs  
FrameCarbon
SuspensionFull, 130 / 130mm
ForkFox Factory Float 34
ShockFox Float DPS Factory
Wheels29″ Carbon
Drivetrain1 × 12
GroupsetX01 Eagle
BrakesSRAM G2 RSC Hydraulic Disc
SeatpostDropper
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Izzo CORE 4 29
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Izzo CORE 4 29

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'1" – 5'7"

MD

5'5" – 5'11"

LG

5'8" – 6'2"

XL

6'0" – 6'5"

XXL

6'3" – 6'9"

Rider Fit Notes
  • 6'4", size XXL, Fits large
  • 5'10", size LG, Just right
Reviews

Summary

The YT Izzo is a lightweight and efficient trail bike with 130mm of travel, praised for its excellent climbing performance and agile handling. It offers a playful and responsive ride, making it well-suited for rolling terrain and technical trails. However, some reviews note that it can be demanding on rough descents and has minor issues with component accessibility.

Pros
  • Excellent climbing performance

  • Lightweight and efficient design

  • Agile and responsive handling

  • Good value for money

  • Playful and fun ride quality

Cons
  • Struggles on rough or aggressive terrain

  • Some components have accessibility issues

  • Can feel harsh or demanding on long rides

  • Tire and brake choices may not be ideal for all conditions

Key Quotes
The Izzo was hands down my favorite climber.
Beta logoBeta
Fast and fun on the right tracks, the Izzo begs for another lap.
BikeRadar logoBikeRadar
Stiff, fast, demanding: that’s the IZZO BLAZE in three words.
Enduro Mountainbike Magazine logoEnduro Mountainbike Magazine
This thing is absolutely razor sharp to the point where it makes those other bikes feel a bit soft.
MBR logoMBR
The Izzo is an absolute weapon on the right terrain.
Outdoor Gear Lab logoOutdoor Gear Lab

Feedback?

View all reviews

Vital MTB
2022 YT IZZO Core 3 Bike

Jul 2022 · Jason_Schroeder

YT’s dedicated trail bike aims to foster efficiency and speed climbing while maintaining its shred-everything DNA on the way back down.

Read Review

BikeRadar
YT Izzo Core 2 review

May 2022 · Tom Marvin

Nimble handling and fast acceleration can be a blast, but its limits lie on steeper tracks

Highs
  • Fast and fun on the right tracks, the Izzo begs for another lap

Lows
  • Compromised tyres and brakes hold it back

  • Rear suspension not ideal on gnarlier terrain

Read Review

Bike Perfect
YT Izzo Core 3 review – contender for best short-travel trail bike?

May 2022 · Richard Owen

YT inject a short-travel bike with their gravity DNA and the Izzo is the result

Highs
  • Best short-travel trail bike contender

  • Climbs brilliantly

  • Full carbon frame

  • Decent value spec

  • Fidlock bottle fitting included

Lows
  • Front tire is unpredictable in tougher conditions

  • Noticeably laggy freehub pick-up

  • Additional fees for packing and shipping

Read Review

Beta
Field Test: YT Izzo Core 2

Apr 2022 · Mike Kazimer

The YT Izzo Core 2 offers exceptional value for the money, and the only carbon-framed test bikes at this year's Value Field Test.

Highs
  • Excellent climbing performance

  • Light and lively; well suited for rolling terrain

  • Very good parts spec for the price

Lows
  • Tight clearance around shock air valve limits pump choices

Read Review

Singletrack World
Review: YT Izzo Core 3

Apr 2022 · Ben Haworth

The YT Izzo Core 3 is reviewed by Benji in The Big Short bike grouptest in issue 142 of Singletrack World. See what he thought!

Read Review

off.road.cc
YT Industries IZZO CORE 3 review

Mar 2022

The YT IZZO CORE 3 is a trail bike that commands your attention. Visually striking with clean lines, a considerate build spec and a geometry that can man-handle some pretty gruelling terrain, the IZZO CORE 3 is impressive, to say the least. Held back by a less than ideal tyre choice and a lacklustre own-brand dropper post, it's difficult to fault this well-executed and playful trail bike. Why are mountain bike cranks so long? The best cycling water bottles that money can buy. Endura launch its first MTB shoe range for 2022.

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MBR
YT Izzo Uncaged 7 first ride review - MBR

Jan 2022 · Danny Milner

YT launched its short travel Izzo 18 months ago, and in its original form it was a short travel bike with 130mm travel that bridged the gap between trail and XC. Shortly after, YT over-forked the front end with a 140mm travel Pike and called it the Izzo Blaze. And to complete the Izzo family YT has now gone the other way; lightweight bits and 120mm of travel mean the Uncaged 7 is aimed squarely at those who prefer their pain and pleasure in equal measures. If you want to  read more about the best XC and down-country bikes, check out our buyer’s guide. Need to know 120mm travel version of YT’s short-travel trail/down-country bike Lock out the front and rear suspension with a twist of the wrist Wireless SRAM AXS drivetrain and Reverb dropper post Components chosen for weight saving without sacrificing capability Limited to 300 bikes worldwide Frame Unchanged from the original model, the Izzo frame cuts quite a dash with its sharp creases, slender tube profiles and continuous lines hewn from YT’s top end Ultra Modulus carbon. It’s undoubtedly a good looking bike, and nothing on the Uncaged 7 changes that. That bright Laser Yellow paint might prove divisive, but in a sea of blacks and greys, personally I love it. The Izzo’s layout represents the epitome of classic suspension bike designs given a modern twist. As pioneered by Scott, the shock sits upside down, which allows the upper rocker link to be kept narrow and away from knees and gives direct access to the damping controls for the remote lockout while keeping the cable mostly hidden. There’s a big and boxy junction between the down tube, bottom bracket and seat tube that doubles as the lower shock mount, but YT has included a small drain hole to ensure the area doesn’t turn into a bird bath. At the back there’s a pivot on the chainstay, which bucks the trend among short travel bikes to run flexstays and probably adds 100g or so to the frame weight. Geometry and sizing Offered in five frame sizes, the Izzo is relatively contemporary in terms of sizing but does suffer slightly from overlong seat tubes on the larger options. Reach spans from 432mm on the Small to 517mm on the XXL, which is slightly longer than the regular Izzo simply because the head angle is a touch steeper and the front end lower due to the fork having 10mm less travel. My size large test bike had a 475mm reach, a few mm shorter than our benchmark down-country bike, the Transition Spur. To help keep the balance and handling consistent across the size range there are two different chainstay lengths – 432mm on the smaller frames and 437mm on the XL and XXL. And for making subtle changes to the handling, a flip chip at the rocker link gives 0.4º of head angle adjustment (65.5º/65.9º) and alters the BB height by 5mm. Components Uncaged in YT parlance refers to models …Continue reading »

Highs
  • Acutely responsive and ruthlessly efficient. Agile and accurate. Good spec for the price.

Lows
  • Nowhere to hide. Traction/grip is not the best. Doesn’t really need the remote lockout. Front tyre could be more aggressive.

Read Review

Outdoor Gear Lab
YT Izzo Core 4

Nov 2021 · Jeremy Benson

The YT Izzo Core 4 doesn't fit the typical trail bike mold. This 27.5 lb carbon 29er has 130mm of travel front and rear along with a moderate modern...

Highs
  • Agile and responsive

  • Zippy climber

  • Lightweight

  • Amazing build for the price

Lows
  • Actual seat tube angle is relatively slack

  • Lackluster freehub engagement

  • Can be overwhelmed in aggressive terrain

Read Review

Geometry
Specs
Build
Fork

FOX 34 FLOAT FACTORY, 29“ | 130 mm Travel | 110 x 15 mm Axle | 44 mm Offset Grip2 Damper, Adjustable High- and Low-Speed Compression and Rebound, Air Pressure, Kashima Coating

Travel130mm

Spring TypeAir

Shock

FOX FLOAT DPS FACTORY, Shock Length: 210 mm | Shock Stroke: 55 mm ≙ 130 mm Travel 3-pos lever, Low-Speed Compression, Low-Speed Rebound, Air Pressure, Kashima Coating

Travel130mm

Headset

ACROS AZX, 586 Block Lock (S-M), 576 (L-XXL) I 2 Spacer 5 mm

Stem

RACE FACE TURBINE R 35, Length 50 mm (S-M), 60 mm (L-XXL) | 35 mm Clamp | Rise 0°

Handlebar

RACE FACE NEXT R 35, Width 780 mm | Rise 20 mm | 8° Back Sweep | 5° Up Sweep

Saddle

SDG BEL Air 3.0, YT Custom | Width 140 mm I Lux-Alloy Rail

Seatpost

YT POSTMAN, Ø 31.6 mm | 100 mm Drop (Frame Size S) | 125 mm Drop (Frame Size M) | 150 mm Drop (Frame Size L) | 170 mm Drop (Frame Size XL-XXL) | MMX-Remote

TypeDropper

Grips

ODI ELITE MOTION V2.1, Lock On

Groupset
Rear Derailleur

SRAM X01 EAGLE, 12-fach

Crank

SRAM X01 EAGLE, Crank Arm Length 170 mm (S), 175 mm (M-XXL) | 32T | DUB

Shifters

SRAM X01 EAGLE, 12-fach

Cassette

SRAM XG 1295 Eagle, 10-52T | 12-speed

Brakes

SRAM G2 RSC, Rotor CENTERLINE Ø front 200 mm / rear 180 mm Adjustable Bite Point and Reach

TypeSRAM G2 RSC Hydraulic Disc

Wheels
Rims

DT SWISS XMC 1501 SPLINE, Carbon Rim 29“ | Inner Width 30 mm | Front Hub 110 x 15 mm | Rear Hub 148 x 12 mm | Freehub XD

Tires

MAXXIS FORECASTER, Tire Size 29“ x 2.35 | EXO Casing | DUAL Compound | Tubeless Ready

Rider Notes
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First added June 1

Last updated September 24

Not listed for 1,709 days