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Today’s DealsJeffsy 29 CF
A 29″ carbon frame full suspension trail bike with high-end components.
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Manufacturer Price
$3,499| Weight | 28.2 lbs |
|---|---|
| Frame | Carbon |
| Suspension | Full, 140 / 140mm |
| Fork | RockShox Pike RCT3 |
| Shock | RockShox Monarch RT3 |
| Wheels | 29″ Aluminum |
| Drivetrain | 1 × 11 |
| Groupset | XT |
| Brakes | SRAM Guide RS Hydraulic Disc |
| Seatpost | Dropper |
Summary
The YT Industries Jeffsy is a trail bike that excels in aggressive descending and technical climbs, thanks to its Virtual 4 Link suspension and adjustable geometry. It offers excellent value with its consumer-direct business model, though some builds may feel twitchy at high speeds or limited in suspension travel. The bike is frequently praised for its fun factor and versatility on a variety of trails.
Consumer-direct business model keeps prices significantly lower
Virtual 4 Link suspension provides excellent small-bump sensitivity and mid-stroke support
Ideal geometry for aggressive descending with adjustable angles
Snappy and agile yet stable on technical uphill sections and high-speed descents
Frame can’t accept traditional water bottles
Some builds may feel twitchy at higher speeds
Limited suspension travel on rougher terrain
if this was the $4,600 version, how could the flagship CF Pro ride any better?
Fast, agile, feedback-rich and top value, but its short travel and uptight geometry are frustrating
The YT Jeffsy is a ripper of a bike.
Feedback?
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May 2019
What happens when you add longer travel, burlier suspension and fancier parts to an already-fancy, burly long-travel trail bike? The YT Jeffsy 29 CF Pro Race.

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

Jan 2019
The new Jeffsy gets more travel in both wheel sizes, a better pedalling platform, longer reach, shorter offset and of course Christopher Walken...
Jan 2019 · Hannah Dobson
It’s the first few minutes of a bike launch and I’m having to try quite hard not to weep. The scepticism brought about by predictably dramatic music, followed by an...

Dec 2018 · Christoph Bayer
The YT JEFFSY 29 CF Pro Race won Aaron Gwin and us over too, but unfortunately, it wasn't enough to beat the competition.
Good value for your money
Good-natured, predictable handling
Excellent rear linkage
Head angle somewhat steep / not enough travel on the fork
Externally routed cables seem outdated

Apr 2018 · Tom Marvin
One of the most fun bikes you can sling a leg over. Full stop. Buy if you like going to the woods and having a whale of a time
Addictive, hilarious ride quality, decent kit and good price
Trend followers will want more reach and a shorter seat tube

Dec 2017 · Drew Barber
Priced right and packing good looks, the YT Jeffsy is a tempting buy. But how does the Jeffsy star up on the trail or against its 29" brother?

Aug 2017 · Alan Muldoon
The Jeffsy CF Pro Race 27 takes the stock 27 platform and pumps the travel up to 160mm. It’s something of a lone wolf within the Jeffsy 27 range.
Light, fast and dressed to impress.
Takes the Fox 34 to the limit.
| Frame | Carbon Fiber BB Standard: BB86/BB92, Press Fit |
|---|---|
| Fork | RockShox Pike RCT3, 51mm rake, Boost Travel: 140mm |
| Shock | RockShox Monarch RT3, 200mm x 57mm Travel: 140mm |
| Bottom Bracket | Race Face BB92 |
| Headset | Acros AIX-326 |
| Stem | Race Face Turbine R, 50mm length |
| Handlebar | Race Face Turbine R 35, 35mm rise, 780mm width |
| Saddle | SDG Fly MTN, red, YT custom |
| Seatpost | e*thirteen TRS+, 125mm or 150mm drop Type: Dropper |
| Pedals | None included |
| Grips | ODI Elite Motion V2.1 Lock-on |
| Rear Derailleur | Shimano XT Shadow Plus |
|---|---|
| Front Derailleur | N/A |
| Crank | Race Face Turbine, 175mm length, Boost |
| Shifters | Shimano XT, 11-speed |
| Cassette | e*thirteen TRS+, 9-46 tooth, 11-speed |
| Chain | Shimano CN-HG601-11 |
| Chain Guide | N/A |
| Brakes | SRAM Guide RS with Centerline 200mm front/180mm rear rotors Type: SRAM Guide RS Hydraulic Disc |
| Brake Levers | SRAM Guide RS |
| Rims | e*thirteen TRS, 28 hole, 30mm width |
|---|---|
| Front Hub | e*thirteen TRS, Front: 15mm x 110mm, Rear: 12mm x 148mm |
| Rear Hub | e*thirteen TRS, Front: 15mm x 110mm, Rear: 12mm x 148mm |
| Tires | e*thirteen TRS+, 2.35" |
First added April 14
Last updated April 14
Not listed for 2,967 days