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Today’s DealsJeffsy CORE 2
A 27.5″ aluminum frame full suspension enduro bike with high-end components.
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Manufacturer Price
$2,999| Weight | 33.3 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 160 / 160mm |
| Fork | Fox Performance Float 36 |
| Shock | Fox Float DPX2 Performance |
| Wheels | 27.5″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | NX Eagle, Truvativ Descendant |
| Brakes | SRAM G2 R Hydraulic Disc |
| Seatpost | Dropper |
5'0" – 5'6"
5'4" – 5'10"
5'8" – 6'1"
5'11" – 6'5"
6'3" – 6'8"
None yet.
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Summary
The YT Industries Jeffsy is a highly capable and versatile enduro bike that excels in both climbing and descending, offering a fun and playful ride. It's praised for its excellent value, with solid specifications and a sturdy aluminum frame. The bike's suspension performance is notable for its active kinematics, providing good traction and control on descents, though some reviews mention pedal bob on long climbs.
Incredibly capable and versatile
Excellent value for the price
Sturdy aluminum frame and solid specifications
Active suspension kinematics for good traction and control
Fun and playful ride quality
Pedal bob on long climbs
Slightly limited water bottle space
Could use stronger brakes
Press-fit bottom bracket is annoying to service
Somewhat vague-feeling climbing characteristics
The YT Jeffsy turned our usual value conversation on its head.
With the YT Jeffsy Base 29, you get an incredibly capable bike at an exceptional value.
The Jeffsy is an excellent jack of all-mountain trades.
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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.
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
Superbly capable
Wants to blast every trail
Packed with top tech
Instant freehub engagement
App driven suspension setup
A hefty investment
Slightly conservative geometry

Jul 2022 · Simon Kohler
In our 2022 trail bike group test, the YT JEFFSY 6 stands up against the competition with an electronic RockShox Flight Attendant suspension system.
Clean look
Solid climber
Direct and precise handling
Brakes lack power
Limited freedom of movement (due to long seat tube and short dropper post)

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
Predictable ride quality
A solid suite of parts
Great for riding just about any terrain
Conservative head angle
A good price, but the outrageous value YT’s reputation was built on isn’t there

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.
Dec 2021 · Lydia Tanner
A great value with an appetite for rowdier trails. .
Incredibly capable
Incredibly fun
Incredibly versatile
Incredible value
Pedal bob had us using the lockout on long climbs
Slightly limited water bottle space
Could use stronger brakes

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.
Great suspension & handling
Pricey given the spec

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.
Well-Rounded nature
Capable suspension package
Technical climbing prowess
Steeper head angle in steep terrain
Flimsy tires
| Fork | FOX 36 Float Performance, 27,5“ | 160 mm Travel | Grip | 110 x 15 mm Axle | 44 mm Offset Travel: 160mm Spring Type: Air |
|---|---|
| Shock | FOX FLOAT DPX2 PERFORMANCE, Shock Length: 230 mm | Shock Stroke: 65 mm ≙ 160 mm Travel | 3pos-Adjust Travel: 160mm |
| Headset | ACROS AZX-576, High Cap |
| Stem | E13 Base 35, Length 50 mm |
| Handlebar | E13 Base 35 |
| Saddle | SDG BEL AIR 3.0, YT Custom | Width 140 mm |
| Seatpost | YT POSTMAN, Ø 31.6 mm | 125 mm Drop (Frame Size S-M) | 150 mm Drop (Frame Size L) | 170 mm Drop (Frame Size XL-XXL) | Standard Remote Type: Dropper |
| Grips | ODI ELITE MOTION V2.1, Lock-On |
| 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, 10-50T | 12-speed |
| Brakes | SRAM G2 R, Rotor CENTERLINE Ø front 200 mm / rear 200 mm | Adjustable Reach Type: SRAM G2 R Hydraulic Disc |
| Rims | DT SWISS M 1900 SPLINE, Aluminum Rims 27,5“ | Inner Width 30 mm | Front Hub 110 x 15 mm | Rear Hub 148 x 12 mm |
|---|---|
| Tires | MAXXIS MINION DHR II, Tire Size 27,5“ x 2.4 | EXO Casing | Tubeless Ready | Dual Compound |
First added March 12
Last updated September 17
Not listed for 1,715 days