2020 YT Jeffsy Base 29 Bike
(discontinued)

Vital Rating:
Related:
Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
The Best Deal on a Well-Performing, 150mm-travel 29er Mountain Bike?
If you can get it, GET IT.
Rating:
Vital Review
s1600 jeffsyA 736636

🔥Vital MTB’s One-Minute Bike Review 🔥

  • YT Industries Jeffsy 29 Base Mountain Bike
  • 29-inch wheels
  • Price: $2,299
  • 4.5 out of 5-star rating - would definitely recommend
  • Tires? Awesome
  • Wheels? Not bad
  • Brakes? Great stopping power. Lever adjustment is a pain.
  • Bars? A bit stiff
  • Stem? We swapped the 50mm for a 35mm (3 of the riders in our test at were in between medium and large (tested)).
  • Dropper post? Fantastic
  • Customer service? Depends on who you ask.
  • Upgrade-ability? Sky’s the limit.
  • 29er haters, go for the 27.5 model.


Over the past 4 months, Vital MTB had 4 different riders spend time on the YT Jeffsy 29 Base for the test feedback provided below.

The best direct-to-consumer bike deal for a well-performing 150mm travel #29er? Probably. The only reason we would not buy this bike is because it’s almost always sold out, and we would not be able to get our hands on it.

Playful, progressive with a solid spec, the Jeffsy ate rough, rocky #DH tracks and blasted big jump lines. Consecutive mid-size hits may feel harsh. Portly at over 34 pounds, earning our way up was worth it for the descent. This fast-turning, well-handling bike blurs the line between trail  and enduro.

Like most #bikes in this price range, rear hub engagement is weak, the SX cassette is a boat anchor and some rebound settings on the rear shock are useless. The Fidlock water bottle is awkward, but at least it keeps weight low. A couple bolts came loose but once re-tightened have remained snug.

If you think you don’t need the support of a local bike shop and want a kick-ass, do-it-all MTB, there’s no reason not to buy the Jeffsy. To get one, keep hitting refresh on yt-industries.com to see when the Jeffsy 29 Base is back in stock.

💪 Kevin Lillywhite is doing the bulk of the shred-dogging in this video. 💪

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Specifications

Product
YT Jeffsy Base 29 Bike
Model Year
2020
Riding Type
Enduro / All-Mountain
Rider
Unisex
Sizes and Geometry
SM (low, high)
MD (low, high)
LG (low, high)
XL (low, high)
XXL (low, high)
Wheel Size
29"
Frame Material
Aluminum
Frame Material Details
High modular alloy; down tube, seatstay, and chainstay protection
Rear Travel
150mm
Rear Shock
RockShox Deluxe Select, 210mm x 55 mm
Fork
RockShox Yari RC, Motion Control damper, 42mm offset, 15x110 Boost axle
Fork Travel
150mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
ACROS AZX-576, High Cap
Handlebar
Race Face Aeffect R, 35mm bore, 20mm rise, 780mm width
Stem
Race Face Aeffect R, 35mm clamp, 50mm length
Grips
ODI Elite Motion V2.1, lock-on
Brakes
SRAM Guide T, SRAM CenterLine rotors (200mm front, 180mm rear)
Brake Levers
SRAM Guide T
Drivetrain
1x
Shifters
SRAM SX Eagle, 12-speed
Front Derailleur
N/A
Rear Derailleur
SRAM SX Eagle, 12-speed
ISCG Tabs
ISCG05
Chainguide
None
Cranks
SRAM SX Eagle DUB, 175mm length, Boost
Chainrings
SRAM SX Eagle, 32 tooth
Bottom Bracket
SRAM DUB
Pedals
Basic pedals included, not made for demanding trails or racing
Chain
12-speed
Cassette
SRAM PG-1210 Eagle, 12-speed, 11-50 tooth
Rims
DT Swiss M1900 Spline wheelset, 30mm inner width
Hubs
DT Swiss M1900 Spline wheelset, 110x15mm Boost front, 148x12mm Boost rear
Spokes
DT Swiss M1900 Spline wheelset
Tires
Maxxis Minion DHR II, EXO, TR, 29" x 2.4"
Saddle
SDG Radar MTN, YT Custom
Seatpost
YT Postman dropper
Drop: 125mm (SM/MD), 150mm (LG), 170mm (XL/XXL)
Seatpost Diameter
31.6mm
Seatpost Clamp
Single bolt
Rear Dropout / Hub Dimensions
148x12mm Boost
Max. Tire Size
 
Bottle Cage Mounts
Yes (single)
Colors
TwoTone Blue, Black Magic
Warranty
5 years frame, 2 years components
Weight
33 lb 8.2 oz (15,200 g)
Miscellaneous
V4L (Virtual 4-Link) rear suspension
Geometry adjustable via flip chip in rear shock mount
Weight given for LG size frame without pedals
Includes IceToolz tool kit with torque wrench, shock pump, allen key, and anti-slip paste
Price
$2,299.00
What do you think?
Where To Buy
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
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