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2022 YT Industries

Jeffsy CORE 2 29

A 29″ aluminum frame full suspension enduro bike with high-end components.
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Manufacturer Price

$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
BrakesSRAM G2 R Hydraulic Disc
SeatpostDropper
Where to Buy
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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

Similar Bikes

Highest gear

(descending)

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

None yet.

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Reviews

Summary

The YT Industries Jeffsy is a highly capable and versatile enduro bike, praised for its gravity-hungry nature, fast and confident riding, and exceptional value. It excels in a variety of terrains, offering a playful yet stable ride, with a suspension setup that provides great traction and support. While it climbs efficiently, some reviews note pedal bob on long ascents and a desire for stronger brakes.

Pros
  • Incredibly capable and fun

  • Exceptional value

  • Modern geometry and solid spec

  • Great suspension performance

  • Versatile for all-mountain riding

Cons
  • Pedal bob on long climbs

  • Could use stronger brakes

  • Limited water bottle space

  • Somewhat heavy

  • Press-fit bottom bracket issues

Key Quotes
The YT Jeffsy turned our usual value conversation on its head.
Beta logoBeta
With the YT Jeffsy Base 29, you get an incredibly capable bike at an exceptional value.
BIKE Magazine logoBIKE Magazine
The Jeffsy is an excellent jack of all-mountain trades.
Bike Perfect logoBike Perfect

Feedback?

View all reviews

Bikerumor
2023 YT Jeffsy v3.0 MTB is a Better Friend as an All-Rounder Trail Bike - First Rides Review

Nov 2023 · Cory Benson

Review: All-new YT Jeffsy reminds us that trail bikes are what we all love about mountain biking, from singletrack to bikeparks…

Read Review

Loam Wolf
2023 Budget Bike Roundup: YT INDUSTRIES JEFFSY CORE 2 REVIEW

Feb 2023

Read our YT Industries Jeffsy Core 2 review and see why this versatile, affordable mountain bike is made for rippers and beginners alike. Read the review now!

Highs
  • Best Bang for the Buck

  • Solid Spec

  • Looks the Most Refined

  • Comfortable All-Day Ride

Lows
  • Shift Performance or lack thereof

  • G2 Brake Fade

  • Short Dropper Post

Read Review

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.

Read Review

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

Read Review

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.

Read Review

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

Read Review

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

Read Review

Geometry
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

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

TypeSRAM G2 R Hydraulic 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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First added October 5

Last updated April 22

Not listed for 1,133 days