YT Industries YT Jeffsy 29 AL 2018
2018 Mountain
Estimate price |
2,299$
Weight | 13.18 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 140mm -
Travel Rear 140mm -
Fork Fox Rhythm Float 34
-
Groupset SLX, Race Face -
Suspension Full -
Drivetrain 1 × 11 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Aluminum
Suspension Fork
FOX 34 Float Rhythm, 44mm rake, Boost
Rear Shock
FOX DPS Performance, 200mm x 57mm
Drivetrain
Rear Derailleur
Shimano SLX Shadow Plus
Front Derailleur
N/A
Shift Levers
Shimano SLX, 11-speed
Cassette
e*thirteen TRS+, 9-46 tooth, 11-speed
Crank
Race Face Aeffect SL, 175mm length, Boost
Bottom Bracket
Race Face BB92
Chain
Shimano CN-HG601-11
Chain Guide
N/A
Pedals
None included
Wheels
Front Hub
DT Swiss M 1900 Spline, Front: 15mm x 110mm, Rear: 12mm x 148mm
Rear Hub
DT Swiss M 1900 Spline, Front: 15mm x 110mm, Rear: 12mm x 148mm
Rims
DT Swiss M 1900 Spline, 30mm width
Tires
Maxxis Minion DHR II, 2.40" WT EXO
Brakes
Brakes
SRAM Guide R with Centerline 200mm front/180mm rear rotors
Brake Levers
SRAM Guide R
Cockpit
Stem
Race Face Aeffect R, 50mm length
Handlebar
Race Face Aeffect R 35, 20mm rise, 780mm width
Grips
SDG Slater
Headset
Acros AZX-203
Seat
Saddle
SDG Fly MTN, teal blue, YT custom
Seatpost
e*thirteen TRS+, 125mm or 150mm drop
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM High | MD High | LG High | XL High |
|---|---|---|---|---|
| Stack Reach Ratio | 1.494 mm | 1.435 mm | 1.4 mm | 1.351 mm |
| Bottom Bracket Height | 350 mm | 350 mm | 350 mm | 350 mm |
| Front Center | 698 mm | 720 mm | 739 mm | 766 mm |
| Rake | 42 mm | 42 mm | 36 mm | 41 mm |
| Trail | 113 mm | 113 mm | 120 mm | 114 mm |
| Stack | 605 mm | 610 mm | 623 mm | 628 mm |
| Reach | 405 mm | 425 mm | 445 mm | 465 mm |
| Top Tube Length | 571 mm | 592 mm | 616 mm | 637 mm |
| Seat Tube Angle | 74.5 ° | 74.5 ° | 74.5 ° | 74.5 ° |
| Seat Tube Length | 400 mm | 440 mm | 480 mm | 520 mm |
| Head Tube Angle | 67 ° | 67 ° | 67 ° | 67 ° |
| Head Tube Length | 90 mm | 95 mm | 110 mm | 115 mm |
| Chainstay Length | 435 mm | 435 mm | 440 mm | 440 mm |
| Wheelbase | 1132 mm | 1154 mm | 1178 mm | 1205 mm |
| Bottom Bracket Drop | 24 mm | 24 mm | 24 mm | 24 mm |
| Wheels | 29" | 29" | 29" | 29" |
About this model
Jeffsy 29 AL is a Yt Jeffsy model. YT launched 64 bikes of this model so far. You can get a glimpse at all models from 2018, by clicking on this link.
Model range prices
YT Jeffsy 27 AL 2018 is the cheapest bike model and costs 2299$. YT Jeffsy 29 CF Pro Race 2018 is the most expensive one and costs 4999$.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Average price for Trail bikes
Our math shows that the average cost of a dependable Trail bike is 2762$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Trail bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
When YT released this model in 2018, its price was 2299$. If we compare this with the average Trail bike cost we notice that the price is 20.14% lower.
Trail bikes average weight
On a deeper look, we notice that the average weight of a Trail bike is 12.98 kg (28.62 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
With a weight of 13.18 kg (29.06 lbs), YT bike is slightly heavier than average. In conclusion, the average Trail bike weighs 1.54% less than Jeffsy 29 AL.
Overview of components
Fork
This bike has the Fox Rhythm Float 34 fork installed. The fork’s travel is 140mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In short, you should always ensure you have a good fork when purchasing a bike.
Rear Shock
As for the rear shock, this bike has the FOX DPS Performance model, with a travel of 140mm. Rear shocks offer better comfort, better traction, and better cornering. This allows for quicker riding on rough roads and trails. To sum up, get a full-suspension bike if you want the smoothest rides.
Wheels
When leaving the production line, the Jeffsy 29 AL model has 29″ aluminum wheels. These wheels are more forgiving when you go over roots, rocks, bumps, or other obstacles you encounter on your ride. However, 29″ wheels will make your bike react slower to obstacles you may encounter.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, you can ride your bike with confidence.
Dropper post
Every bike should have a dropper post, and this one does. A dropper post is a must-have these days if you’re riding anything remotely technical. The main benefit of a dropper post is increased safety while riding. As mentioned above, the lever system allows you to quickly move the saddle out of the way when approaching descents or trail obstacles.