YT Industries YT JEFFSY 29 AL Base 2019
2019 Mountain
Estimate price |
2,399$
Weight | 13.9 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 NX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
JEFFSY ALLOY 29" hydro-formed aluminum frame, V4L Virtual 4-Link rear suspension, 148x12mm DT Swiss QR Thru axle, seat stay/chain stay protection
Suspension Fork
FOX 34 Float Rhythm 29“ | 140mm | 15QRx110 | 44mm Rake
Rear Shock
FOX Float DPS Performance 3pos | 200X57mm
Drivetrain
Rear Derailleur
SRAM NX Eagle 12-Speed
Front Derailleur
N/A
Shift Levers
SRAM NX Eagle 12-Speed
Cassette
SRAM PG-1230 Eagle 11-50T | 12-Speed
Crank
SRAM NX 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
DT Swiss M 1900 Spline wheelset, 15mm x 110mm front, 12mm x 148mm rear
Rear Hub
DT Swiss M 1900 Spline wheelset, 15mm x 110mm front, 12mm x 148mm rear
Rims
DT Swiss M 1900 SPLINE 29“ x 30mm | 110x15mm | 148x12mm
Spokes
DT Swiss M 1900 Spline wheelset
Tires
Maxxis Minion DHR II 29" | 2.40
Brakes
Brakes
SRAM Guide T ROTOR CENTERLINE | 200mm / 180mm
Brake Levers
SRAM Guide T
Cockpit
Stem
Race Face AEFFECT R 35 50mm
Handlebar
Race Face AEFFECT R 35 20mm Rise | 780mm
Grips
ODI Elite Motion V2.1 | Lock On
Headset
Acros AZX-203 High Cap
Seat
Saddle
SDG FLY MTN YT Custom | White | Grey
Seatpost
SDG Tellis 31.6mm | S 125mm Drop | M - XXL 150mm Drop
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.494 mm | 1.435 mm | 1.4 mm | 1.351 mm |
| Bottom Bracket Height | 342 mm | 342 mm | 342 mm | 342 mm |
| Front Center | 699 mm | 721 mm | 740 mm | 767 mm |
| Rake | 46 mm | 46 mm | 40 mm | 44 mm |
| Trail | 109 mm | 109 mm | 116 mm | 111 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 | 32 mm | 32 mm | 32 mm | 32 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
About this model
JEFFSY 29 AL Base is part of the Yt Jeffsy model. YT launched 64 bikes of this model so far. Take a sneak peek at all Yt Jeffsy bikes models from 2019, by clicking here.
Model range prices
YT JEFFSY 27 AL Base 2019 is the most economical model, with a starting price of 2399$. YT JEFFSY 29 CF Pro Race 2019 on the other hand costs 5499$, and is the most expensive model.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Trail bikes
Our math shows that the average cost of a dependable Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 2399$. Comparing the average cost of a Trail bike to this one, you will see that JEFFSY 29 AL Base price is 15.13% smaller.
Average weight for Trail bikes
The average weight for Trail bikes is 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.
a bit heavier than average, JEFFSY 29 AL Base has a weight of 13.9 kg (30.64 lbs). In short, the average Trail bike weight is 7.09% lower than this one.
Overview of components
Fork
The JEFFSY 29 AL Base comes factory-installed with the Fox Rhythm Float 34 fork. This has a travel range of 140mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
YT JEFFSY 29 AL Base bike has the FOX Float DPS Performance 3pos | 200X57mm model installed, and has 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, always consider getting a bike that has a rear shock as well.
Wheels size
When it comes to wheels, the JEFFSY 29 AL Base bike is equipped with the 29″ aluminum model. These wheels are more forgiving when you go over roots, rocks, bumps, or other obstacles you encounter on your ride. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
For your safety, it is important to have quality breaks on your bike. YT JEFFSY 29 AL Base has Hydraulic Disc brakes installed. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
There are 4 sizes available for this model. Rider height can be anywhere between 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, you won’t have a problem finding one that suits you.
Dropper post
YT JEFFSY 29 AL Base comes with a dropper post. If used correctly, a dropper post gives you more faith, maneuverability, and greater control over your bike.