2020 YT Industries

JEFFSY Pro 29

A 29″ carbon frame full suspension enduro bike with high-end components.
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MSRP$3,899
Weight29.1 lbs  
FrameCarbon
SuspensionFull, 150 / 150mm
ForkRockShox Pike Select+
ShockRockShox Super Deluxe Select+
Wheels29″ Aluminum
Drivetrain1 × 12
GroupsetGX Eagle
BrakesHydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
JEFFSY Pro 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)

28 mph

JEFFSY Pro 29

26 mph

Similar Bikes

Highest gear

(descending)

Reviews
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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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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Outdoor Gear Lab
YT Jeffsy Core 3

Jun 2021 · Jeremy Benson

The Jeffsy Core 3 is the latest version of YT's popular longer travel trail bike. While other brands have gone to extremes with their geometry, this bike's...

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Bikerumor
YT Blaze give RockShox Deluxe Ultimate suspension to Izzo Jeffsy Capra

Feb 2021

YT Blaze models introduce top-end Deluxe Ultimate RockShox suspension to the Izzo trail bike, Jeffsy all-mountain bike and Capra enduro bike

Read Review

Vital MTB
2020 YT Jeffsy Base 29 Bike

Sep 2020 · Sspomer

If you can get it, GET IT.

Read Review

MBR
YT Jeffsy 29 CF Comp review - MBR

Apr 2020 · Paul Burwell

Back to defend its Trail Bike crown is the YT Jeffsy 29 CF Comp 29. Revamped last year: a new carbon frame, adjustable geometry, top-quality spec.

Read Review

BikeRadar
YT Jeffsy Pro 29 (2020) review

Apr 2020 · Tom Marvin

While it might not break records uphill, if you don’t want to lug a full-on enduro bike around, the Jeffsy is king of the hill

Highs
  • A sublime rear suspension with geometry and kit to match

Lows
  • It’ll get up a hill, but isn't as peppy as the leading trail bikes on the market

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

JEFFSY Carbon 29" high modular carbonfiber frame | V4L Virtual 4-Link rear suspension | 148x12 mm DT Swiss QR Thru axle | down tube/seat stay/chain stay protection

Fork

RockShox Pike Select + 29" | 150 mm | 42 mm Rake

Travel150mm

Shock

RockShox Super Deluxe Select + 210 x 55 mm

Travel150mm

Headset

Acros AZX-576 High Cap

Stem

E13 Plus 50MM LENGTH | 35MM CLAMP | 0 RISE

Handlebar

E13 Plus 780 mm Width | 35 mm Rise | 35 mm Clamp

Saddle

SDG RDR MNT YT Custom

Seatpost

YT Postman 31.6 mm | S - M 125 mm drop / L 150 mm drop / XL - XXL 170 mm drop

TypeDropper

Pedals

included / inklusive The included pedals were not made for demanding trails or racing. That is why we also offer you quality pedals at an attractive price in the shopping cart.

Grips

ODI Elite Motion V 2.1 Lock- On

Groupset
Rear Derailleur

SRAM GX Eagle 12- Speed

Crank

SRAM GX Eagle 175 mm | 32 T | DUB

Shifters

SRAM GX Eagle 12- Speed

Cassette

SRAM XG1275 Eagle 10- 50 T | 12- Speed

Brakes

SRAM G2 RSC Rotor Centerline 200 mm / 180 mm

TypeHydraulic Disc

Wheels
Rims

E13 TRS Plus 29" x 27 mm | 110 x 15 mm | 148 x 12 mm

Tires

Front: MAXXIS Minion DHR II 3C MaxxGrip 29" x 2.4 | EXO | TR, Rear: MAXXIS Minion DHR II 3C MaxxGrip 29" x 2.4 | EXO | TR

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Last updated August 5
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