2022 YT Industries

Jeffsy CORE 2 29

A 29″ aluminum frame full suspension enduro bike with high-end components.
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MSRP$2,999
Weight33.7 lbs  
FrameAluminum
SuspensionFull, 150 / 150mm
ForkFox Performance Float 36
ShockFox Float DPX2 Performance
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetNX Eagle, Truvativ Descendant
BrakesHydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Jeffsy CORE 2 29
Other Enduro 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)

25 mph

Jeffsy CORE 2 29

26 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Jeffsy model range

View Comparison
Sizing
SM

5'0" – 5'6"

MD

5'4" – 5'10"

LG

5'8" – 6'1"

XL

5'11" – 6'5"

XXL

6'3" – 6'8"

Rider Fit Notes

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Reviews
off.road.cc
YT Industries Jeffsy 29 Core 3 review

Aug 2022

The YT Jeffsy 29 Core 3 is a very capable all-mountain bike which can handle the rough stuff but is equally at home on flow trails and jumps. While the specification list is solid for the money, it's worth paying extra attention to frame sizing and geometry to get the ride you want. With a longer dropper and some tougher tyres this bike has what it takes to be a real challenger when it comes to the best mountain bikes.

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Bike Perfect
YT Jeffsy Uncaged 6 review – the all-mountain ripper meets Flight Attendant tech

Aug 2022 · Richard Owen

Like Robocop or the Six Million Dollar Man, YT have rebuilt the Jeffsy with top notch tech to be (even) better than it was before

Highs
  • Superbly capable

  • Wants to blast every trail

  • Packed with top tech

  • Instant freehub engagement

  • App driven suspension setup

Lows
  • A hefty investment

  • Slightly conservative geometry

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BikeRadar
YT Jeffsy 29 Core 3 review

May 2022 · Ed Thomsett

An excellent complete package that makes fun of all but the gnarliest descents, thanks to a head angle that feels too steep

Highs
  • Predictable ride quality

  • A solid suite of parts

  • Great for riding just about any terrain

Lows
  • Conservative head angle

  • A good price, but the outrageous value YT’s reputation was built on isn’t there

Read Review

Pinkbike
YT Drops New Jeffsy Uncaged 8 Build

Apr 2022 · Matt Beer

Following the recent release of YT's Capra and Decoy MX Uncaged 9 builds is the trail-friendly 150mm Jeffsy Uncaged 8.

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Beta
The Beta Tests: YT Jeffsy Core 2 29

Dec 2021 · Lydia Tanner

A great value with an appetite for rowdier trails. . 

Highs
  • Incredibly capable

  • Incredibly fun

  • Incredibly versatile

  • Incredible value

Lows
  • Pedal bob had us using the lockout on long climbs

  • Slightly limited water bottle space

  • Could use stronger brakes

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MBR
YT Industries Jeffsy Core 2 review: great suspension and handling - MBR

Nov 2021 · Alan Muldoon

Whether you’re 5ft 1in or 6ft 4in tall, you won’t have any issues achieving a glove-like fit on the YT Industries Jeffsy Core 2.

Highs
  • Great suspension & handling

Lows
  • Pricey given the spec

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Loam Wolf
Review: YT Jeffsy 29 Core 4

Oct 2021 · Robert Johnston

The YT Jeffsy 29 Core 4 is a versatile all mountain bike that’ll happily crunch out mellower miles or tackle some tough enduro tracks.

Highs
  • Well-Rounded nature

  • Capable suspension package

  • Technical climbing prowess

Lows
  • Steeper head angle in steep terrain

  • Flimsy tires

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Mountain Bike Action
BIKE REVIEW: YT JEFFSY ALL-MOUNTAIN MACHINE - Mountain Bike Action Magazine

Aug 2021 · McCoy

The Jeffsy hits the mark for a rider who wants to go a step beyond...

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Fork

FOX 36 FLOAT PERFORMANCE, 29“ | 150 mm Travel | Grip | 110 x 15 mm Axle | 44 mm Offset

Travel150mm

Spring TypeAir

Shock

FOX FLOAT DPX2 PERFORMANCE, Shock Length: 210 mm | Shock Stroke: 55 mm ≙ 150 mm Travel | 3pos-Adjust

Travel150mm

Spring TypeAir

Headset

ACROS AZX-576, ZS44 ZS56 | High Cap | 2 Spacer 5 mm

Stem

E13 Base 35, 50 mm | 0°Rise | 6061 AL | Black

Handlebar

E13 Base 35, Rise 35 mm | Width 780 mm | 9° Back Sweep | 5° Up Sweep

Saddle

SDG BEL AIR 3.0, 140 mm I Lux-Alloy Rail I YT Custom Design

Seatpost

YT POSTMAN Standard Remote , Ø 31.6mm | 125 mm (S-M) |150 mm (L) | 170 mm (XL-XXL)

TypeDropper

Grips

ODI ELITE MOTION V2.1, Lock-On

Groupset
Rear Derailleur

SRAM NX EAGLE, 12-speed

Crank

SRAM Descendant 6k, Crank Arm Length 175 mm | 32T I DUB-PressFit

Shifters

SRAM NX EAGLE, 12-speed

Cassette

SRAM PG 1230 EAGLE, 11-50T | 12-speed

Brakes

SRAM G2 R, Rotor CENTERLINE Ø front 200 mm / rear 200 mm | Adjustable Reach

TypeHydraulic Disc

Wheels
Rims

DT SWISS M 1900 SPLINE, Aluminum Rims 29“ | Inner Width 30 mm | Front Hub 110 x 15 mm | Rear Hub 148 x 12 mm I HG I 3 Pawl

Tires

MAXXIS MINION DHR II, Tire Size 29“ x 2.4 | EXO Casing | Tubeless Ready | Dual Compound

Rider Notes
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Last updated April 22
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