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Today’s DealsJeffsy CORE 3 29
A 29″ carbon frame full suspension enduro bike with high-end components.
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Manufacturer Price
$4,199| Weight | 31.7 lbs |
|---|---|
| Frame | Carbon |
| Suspension | Full, 150 / 150mm |
| Fork | Fox Performance Elite Float 36 |
| Shock | Fox Float DPX2 Performance Elite |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | GX 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

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

Aug 2021 · McCoy
The Jeffsy hits the mark for a rider who wants to go a step beyond...
| Fork | FOX 36 FLOAT PERFORMANCE ELITE, 29“ | 150 mm Travel | Grip 2 | 110 x 15 mm Axle | 44 mm Offset Travel: 150mm Spring Type: Air |
|---|---|
| Shock | FOX FLOAT DPX2 PERFORMANCE ELITE, Shock Length: 210 mm | Shock Stroke: 55 mm ≙ 150 mm Travel | 3pos-Adjust Travel: 150mm |
| Headset | ACROS AZX-576, ZS44 ZS56 | High Cap | 2 Spacer 5 mm |
| Stem | E13 Plus 35, 50 mm | 0°Rise | 7050AL | Black |
| Handlebar | E13 Plus 35, 780 mm | 35 mm Rise | 9° Back | 5° Up | 7050AL | Black |
| Saddle | SDG BEL AIR 3.0, 140 mm I Lux-Alloy Rail I YT Custom Design |
| Seatpost | YT POSTMAN MMX Remote, Ø 31.6mm | 125 mm (S-M) |150 mm (L) | 170 mm (XL-XXL) Type: Dropper |
| Grips | ODI ELITE MOTION V2.1, Lock-On |
| Rear Derailleur | SRAM GX EAGLE, 12-speed |
|---|---|
| Crank | SRAM Descendant 7k, Crank Arm Length 175 mm | 32T I DUB-PressFit |
| Shifters | SRAM GX EAGLE, 12-speed |
| Cassette | SRAM XG1275 EAGLE, 10-52T | 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 29“ | Inner Width 30 mm | Front Hub 110 x 15 mm | Rear Hub 148 x 12 mm I XD I 3 Pawl |
|---|---|
| Tires | MAXXIS MINION DHR II, Tire Size 29“ x 2.4 | EXO Casing | Tubeless Ready | Dual Compound |
First added March 12
Last updated September 17
Not listed for 1,715 days