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Today’s Deals2019 YT Industries
JEFFSY 29 AL Base
A 29″ aluminum frame full suspension trail bike with high-end components.
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Manufacturer Price
$2,399| Weight | 30.6 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 140 / 140mm |
| Fork | Fox Rhythm Float 34 |
| Shock | Fox Float DPS Performance |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | NX Eagle |
| Brakes | SRAM Guide T Hydraulic Disc |
| Seatpost | Dropper |
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
None yet.
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Summary
The YT Industries Jeffsy is a highly capable trail bike, praised for its aggressive design, improved geometry, and excellent value. It offers a smooth, efficient ride with a suspension that handles both small bumps and larger impacts well. The bike is noted for its stability at speed and agility, making it a favorite among aggressive riders. However, some reviews mention issues with component choices like harsh-feeling wheels and underpowered brakes in steep terrain.
Aggressive design aimed at serving aggressive riders
Improved geometry for better handling
Excellent value for money
Smooth and efficient suspension performance
Stable at speed yet agile
Harsh-feeling wheels and tires
Underpowered brakes in steep terrain
Some components require adjustment
From end to end, YT’s entire lineup is aimed primarily at serving aggressive riders.
BIKE MagazineThe Jeffsy’s updates make it hugely capable on a wide range of trails
BikeRadarBang Boom Bang – the JEFFSY likes it rough!
Enduro Mountainbike MagazineThis is not an enduro bike! It's a very capable trail bike.
NSMBThe highly revamped 2019 YT Jeffsy is now hitting consumers’ hands and receiving rave reviews with new owners.
MTBRFeedback?
View all reviews
Jul 2020
At less than half the price of the previous Jeffsy 29 we tested, the YT Jeffsy Base 29 is by no means half the bike.
Apr 2020 · Alex Evans
If I was spending my own money on a bike, the Jeffsy Base 29 would be at the top of my list, offering exceptional value for money with only a few small niggles
Stable and incredibly competent descender that’s fun to ride, easy to set up and relatively cheap to buy
Shifters and brake levers were impossible to get in the right place
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.
May 2019 · Christoph Bayer
The new JEFFSY has caused quite a sensation. However, for this group test, we had last year's YT JEFFSY 27 AL. Can the bike still deliver?
Very composed on rough trails
Excellent rear suspension
Good value for money
Sluggish climber
Underpowered brakes in steep terrain
A bit cumbersome on flat trails
Mar 2019 · Mtbr
YT Industries has launched the all-new YT JEFFSY, a bike the German direct-to-consumer seller calls its most versatile and aggressive trail bike to date. - Mtbr.com
Jan 2019 · Hector Saura
At the beginning of last December I was in the Portuguese region of Algarve, a location that thanks to the WeRide.pt guys is becoming increasingly popular for the practice of mountain biking, especially in winter, since the good weather It allows you to ride without worrying about whether it is cold or bad weather. The reason why I traveled to the south of Portugal was the presentation of the new and updated Jeffsy, the Aggressive Trail bike from YT Industries. News Kinematics with increased anti-squat Geometry with ergonomics that offers better performance in pedaling and driving sensation Bearing and axle system with one-sided access
| Frame | JEFFSY ALLOY 29" hydro-formed aluminum frame, V4L Virtual 4-Link rear suspension, 148x12mm DT Swiss QR Thru axle, seat stay/chain stay protection |
|---|---|
| Fork | FOX 34 Float Rhythm 29“ | 140mm | 15QRx110 | 44mm Rake Travel: 140mm Spring Type: Air |
| Shock | FOX Float DPS Performance 3pos | 200X57mm Travel: 140mm |
| Bottom Bracket | SRAM DUB Pressfit |
| Headset | Acros AZX-203 High Cap |
| Stem | Race Face AEFFECT R 35 50mm |
| Handlebar | Race Face AEFFECT R 35 20mm Rise | 780mm |
| Saddle | SDG FLY MTN YT Custom | White | Grey |
| Seatpost | SDG Tellis 31.6mm | S 125mm Drop | M - XXL 150mm Drop Type: Dropper |
| 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 V2.1 | Lock On |
| Rear Derailleur | SRAM NX Eagle 12-Speed |
|---|---|
| Crank | SRAM NX Eagle 175mm | 34T | DUB |
| Shifters | SRAM NX Eagle 12-Speed |
| Cassette | SRAM PG-1230 Eagle 11-50T | 12-Speed |
| Chain | SRAM GX Eagle |
| Chain Guide | None included |
| Brakes | SRAM Guide T ROTOR CENTERLINE | 200mm / 180mm Type: SRAM Guide T Hydraulic Disc |
| Brake Levers | SRAM Guide T |
| Rims | DT Swiss M 1900 SPLINE 29“ x 30mm | 110x15mm | 148x12mm |
|---|---|
| Spokes | DT Swiss M 1900 Spline wheelset |
| Front Hub | DT Swiss M 1900 Spline wheelset, 15mm x 110mm front, 12mm x 148mm rear |
| Rear Hub | DT Swiss M 1900 Spline wheelset, 15mm x 110mm front, 12mm x 148mm rear |
| Tires | Front: Maxxis Minion DHR II 29" | 2.40, Rear: Maxxis Minion DHR II 29" | 2.40 |
First added March 17
Last updated August 20
Not listed for 2,483 days