YT Industries YT JEFFSY 29 CF Pro 2019
2019 Mountain
Estimate price |
3,999$
Weight | 13 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 29" -
Travel Front 140mm -
Travel Rear 140mm -
Fork RockShox Pike RCT3
-
Groupset GX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
JEFFSY CARBON 29" high modular carbonfiber frame, V4L Virtual 4-Link rear suspension, 148x12mm DT Swiss QR Thru axle, down tube/seat stay/chain stay protection
Suspension Fork
RockShox Pike RCT3 29“ | 140mm | 42mm Rake
Rear Shock
RockShox Deluxe RT3 | 210x50mm
Drivetrain
Rear Derailleur
SRAM GX Eagle 12-Speed
Front Derailleur
N/A
Shift Levers
SRAM GX Eagle 12-Speed
Cassette
SRAM XG-1275 Eagle 10-50T | 12-Speed
Crank
SRAM GX Eagle 175mm | 34T | DUB
Bottom Bracket
SRAM DUB Pressfit
Chain
SRAM GX Eagle
Chain Guide
None included
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.
Wheels
Front Hub
e*thirteen TRS Plus wheelset, 15mm x 110mm front, 12mm x 148mm rear
Rear Hub
e*thirteen TRS Plus wheelset, 15mm x 110mm front, 12mm x 148mm rear
Rims
e*thirteen TRS Plus 29“ x 27mm | 110x15mm | 148x12mm
Spokes
e*thirteen TRS Plus wheelset
Tires
e*thirteen TRS Plus 29" | 2.35
Brakes
Brakes
SRAM Guide RS ROTOR CENTERLINE | 200mm / 180mm
Brake Levers
SRAM Guide RS
Cockpit
Stem
Race Face Turbine R 35 50mm
Handlebar
Race Face Turbine R 35 35mm Rise | 800mm
Grips
ODI Elite Motion V2.1 | Lock On
Headset
Acros AZX-203 High Cap
Seat
Saddle
SDG FLY MTN Cutout YT Custom | Red | White
Seatpost
e*thirteen TRS Plus 31.6mm | S 125mm Drop | M - XL 150mm Drop | XXL 170mm Drop
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.417 mm | 1.366 mm | 1.316 mm | 1.281 mm | 1.241 mm |
| Bottom Bracket Height | 341 mm | 341 mm | 341 mm | 341 mm | 341 mm |
| Front Center | 738 mm | 760 mm | 782 mm | 806 mm | 828 mm |
| Rake | 47 mm | 47 mm | 47 mm | 47 mm | 47 mm |
| Trail | 112 mm | 112 mm | 112 mm | 112 mm | 112 mm |
| Stack | 615 mm | 620 mm | 624 mm | 633 mm | 638 mm |
| Reach | 434 mm | 454 mm | 474 mm | 494 mm | 514 mm |
| Top Tube Length | 571 mm | 592 mm | 614 mm | 637 mm | 659 mm |
| Seat Tube Angle | 77.5 ° | 77.5 ° | 77.5 ° | 77.5 ° | 77.5 ° |
| Seat Tube Length | 400 mm | 415 mm | 435 mm | 460 mm | 485 mm |
| Head Tube Angle | 66.5 ° | 66.5 ° | 66.5 ° | 66.5 ° | 66.5 ° |
| Head Tube Length | 100 mm | 105 mm | 110 mm | 120 mm | 125 mm |
| Chainstay Length | 435 mm | 435 mm | 435 mm | 440 mm | 440 mm |
| Wheelbase | 1171 mm | 1193 mm | 1215 mm | 1244 mm | 1266 mm |
| Bottom Bracket Drop | 35 mm | 35 mm | 35 mm | 35 mm | 35 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" |
Model Overview
JEFFSY 29 CF Pro belongs to the Yt Jeffsy model. There are 64 bikes that carry this model name. Check out the entire range from 2019 of this model, by clicking this link.
Model range prices
YT JEFFSY 27 AL Base 2019 is the cheapest bike model and costs 2399$. YT JEFFSY 29 CF Pro Race 2019 is the most expensive one and costs 5499$.
Safety
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Trail bikes average price
According to our calculations, the average cost of a Trail bike that is reliable is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Furthermore, this bike was made available in 2019 for 3999$. Comparing this to the average Trail bike price, we see that the price is 44.79% more expensive.
Average weight for Trail bikes
If we make a quick analysis of the average weight of a Trail bike, we get 12.98 kg (28.62 lbs). A lighter bike will give you some extra advantage when climbing. A heavier bike will have more speed for descents.
With a weight of 13 kg (28.66 lbs), YT bike is slightly heavier than average. In other words, this model is 0.15% heavier than the average Trail bike.
Overview of components
Fork
The RockShox Pike RCT3 is included from the factory. It has a travel distance of 140mm. Bike forks are great for shock absorption and provide you with a smooth ride. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
As for the rear shock, this bike has the RockShox Deluxe RT3 | 210x50mm model, with a travel of 140mm. Bike rear shocks are a great way to increase comfort on the bike and give you more control when riding on technical trails. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels size
When it comes to wheels, the JEFFSY 29 CF Pro bike is equipped with the 29″ aluminum model. With 29″ wheels, bumps will feel lighter and you’ll gain more speed on descends, compared to smaller wheel-sized bikes. However, these wheels are not ideal for smaller people.
Brakes
Nothing is more important on a bike than its ability to brake properly. YT JEFFSY 29 CF Pro is equipped with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Dropper post
Every bike should have a dropper post, and this one does. If used correctly, a dropper post gives you more faith, maneuverability, and greater control over your bike.