2022 YT Industries
Jeffsy Blaze 29
A 29″ carbon frame full suspension enduro bike with high-end components.
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Manufacturer Price
£3,599($4,557)| Weight | 31.3 lbs |
|---|---|
| Frame | Carbon |
| Suspension | Full, 150 / 150mm |
| Fork | RockShox Lyrik |
| Shock | RockShox Super Deluxe Ultimate |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | GX Eagle |
| Brakes | Hydraulic Disc |
| Seatpost | Dropper |
For This Bike
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full Jeffsy model range
View Comparison5'0" – 5'6"
5'4" – 5'10"
5'8" – 6'1"
5'11" – 6'5"
6'3" – 6'8"
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Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
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
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...
Jul 2021 · Loganbrown
Not your typical Vital bike test...
All fun, all the time
Capable climber
Excellent parts spec
Encourages aggressive riding
Confident descender for both rocks and jumps
A true all-rounder
Frame protection quickly peels
Seemingly forever sold-out (even before the bike boom)
| Frame | JEFFSY Carbon 29", high modular carbonfiber frame | 150mm of travel | 148x12mm Color: Twotone Silver |
|---|---|
| Fork | RockShox Lyrik ULT, 29“ | 150mm | RC2 | 15x110 | 42mm Rake, Charger 2.1 adjustable high and Low-speed compression and rebound, air volume, air pressure Travel: 150mm Spring Type: Air |
| Shock | RockShox SuperDeluxe ULT, 210x55mm, 3times adjustable Low-speed compression, adjustable High-speed compression, rebound, air volume, air pressure Travel: 150mm Spring Type: Air |
| Headset | Acros AZX-576, High Cap |
| Stem | Renthal Apex 35, 50mm |
| Handlebar | Renthal Fatbar 35, Black | 30mm Rise | 780mm Width |
| Saddle | SDG RADAR MNT, YT Custom |
| Seatpost | YT Postman, Ø 31.6mm| 125mm (S-M) | 150mm (L) | 170mm (XL-XXL) | HE-Remote Type: Dropper |
| Grips | Sensus Lite, Lock-On |
| Rear Derailleur | SRAM GX Eagle, 12-Speed |
|---|---|
| Crank | SRAM GX Eagle, 175mm | 32T Boost | DUB |
| Shifters | SRAM GX Eagle, 12-Speed |
| Cassette | SRAM XG1275 Eagle, 10-52T | 12-Speed |
| Chain Guide | E13 TRS Plus, I05 | 28-34T | Compact Slider |
| Brakes | SRAM G2 RSC, Rotor CENTERLINE 200mm/200mm, Adjustable reach and contact point Type: Hydraulic Disc |
| Rims | DT Swiss M 1900 SPLINE, 29" x 30 mm | 110 x 15 mm | 148 x 12 mm |
|---|---|
| Tires | Maxxis Minion DHF / DHR II, 29“ x 2.50 I 29“ x 2.40 |
Last updated March 31
Not listed for 751 days