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Today’s DealsJeffsy CORE 2 29
A 29″ aluminum frame full suspension enduro bike with high-end components.
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Manufacturer Price
$2,999| Weight | 33.7 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 150 / 150mm |
| Fork | Fox Performance Float 36 |
| Shock | Fox Float DPX2 Performance |
| Wheels | 29″ 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, 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.
Incredibly capable and fun
Exceptional value
Modern geometry and solid spec
Great suspension performance
Versatile for all-mountain riding
Pedal bob on long climbs
Could use stronger brakes
Limited water bottle space
Somewhat heavy
Press-fit bottom bracket issues
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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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…

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!
Best Bang for the Buck
Solid Spec
Looks the Most Refined
Comfortable All-Day Ride
Shift Performance or lack thereof
G2 Brake Fade
Short Dropper Post

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
| Fork | FOX 36 FLOAT PERFORMANCE, 29“ | 150 mm Travel | Grip | 110 x 15 mm Axle | 44 mm Offset Travel: 150mm Spring Type: Air |
|---|---|
| Shock | FOX FLOAT DPX2 PERFORMANCE, 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 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) 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, 11-50T | 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 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 |
First added October 5
Last updated April 22
Not listed for 1,133 days