YT Industries YT JEFFSY Base 29 2021
2021 Mountain
Estimate price |
2,299$
Weight | 14.2 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 150mm -
Travel Rear 150mm -
Fork RockShox Yari RC
-
Groupset SX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Jeffsy Alloy 29" high modular alloy main frame | V4L Virtual 4-Link rear suspension | 148x12mm DT Swiss QR Thru axle | down tube/seat stay/chain stay protection
Suspension Fork
RockShox Yari RC 29" | 150 mm | 15 x 110 | 42 mm Rake
Rear Shock
RockShox Deluxe Select 210 x 55 mm
Drivetrain
Rear Derailleur
SRAM SX Eagle 12- Speed
Shift Levers
SRAM SX Eagle 12- Speed
Cassette
SRAM PG1210 Eagle 11- 50 T | 12- Speed
Crank
SRAM SX Eagle 175 mm | 32 T | DUB
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
Rims
DT Swiss M 1900 SPLINE 29" x 30 mm | 110 x 15 mm | 148 x 12 mm
Tires
MAXXIS Minion DHR II Dual Compound 29" x 2.4 | EXO | TR
Brakes
Brakes
SRAM Guide T Rotor Centerline 200 mm / 180 mm
Cockpit
Stem
Race Face AEFFECT R 35 50MM LENGTH | 35MM CLAMP | 0 RISE
Handlebar
Race Face AEFFECT R 780 mm Width | 20 mm Rise | 35 mm Clamp
Grips
ODI Elite Motion V 2.1 Lock- On
Headset
Acros AZX-576 High Cap
Seat
Saddle
SDG RDR MNT YT Custom
Seatpost
YT Postman 31.6 mm | S - M 125 mm drop / L 150 mm drop / XL - XXL 170 mm drop
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.437 mm | 1.382 mm | 1.334 mm | 1.298 mm | 1.255 mm |
| Bottom Bracket Height | 344 mm | 344 mm | 344 mm | 344 mm | 344 mm |
| Front Center | 749 mm | 771 mm | 793 mm | 817 mm | 839 mm |
| Rake | 52 mm | 53 mm | 52 mm | 52 mm | 52 mm |
| Trail | 110 mm | 109 mm | 110 mm | 110 mm | 110 mm |
| Stack | 618 mm | 622 mm | 627 mm | 636 mm | 640 mm |
| Reach | 430 mm | 450 mm | 470 mm | 490 mm | 510 mm |
| Top Tube Length | 572 mm | 593 mm | 615 mm | 638 mm | 660 mm |
| Seat Tube Angle | 77 ° | 77 ° | 77 ° | 77 ° | 77 ° |
| Seat Tube Length | 400 mm | 415 mm | 435 mm | 460 mm | 485 mm |
| Head Tube Angle | 66 ° | 66 ° | 66 ° | 66 ° | 66 ° |
| 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 | 1182 mm | 1204 mm | 1226 mm | 1255 mm | 1277 mm |
| Bottom Bracket Drop | 32 mm | 32 mm | 32 mm | 32 mm | 32 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" |
Model Overview
JEFFSY Base 29 is a Yt Jeffsy model. There are 64 bikes that carry this model name. Check out the entire range from 2021 of this model, by clicking this link.
Model range prices
YT Jeffsy Primus 2021 is the most affordable bike of this model and has a price of 1899$. On the other hand, YT JEFFSY Pro Race 29 2021, is the most expensive and costs 5299$.
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.
Enduro bikes average price
If you want to purchase a solid Enduro bike, it is important to know that the average cost is 3599$. However, this doesn’t mean that if you spend less money on an Enduro bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
This bike was released in 2021 and its price was 2299$. Doing a quick comparison, we notice that JEFFSY Base 29 price is 56.55% smaller than the average cost of an Enduro bike.
Enduro bikes average weight
Enduro bikes have an average weight of 14.27 kg (31.46 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
slightly lighter than average, JEFFSY Base 29 has a weight of 14.2 kg (31.31 lbs). In short, the average Enduro bike weight is 0.49% higher than this one.
JEFFSY Base 29 components
Fork
The RockShox Yari RC is included from the factory. It has a travel distance of 150mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In conclusion, always look for a fork with decent travel when you buy a bike.
Rear Shock
From the factory, it comes with the RockShox Deluxe Select 210 x 55 mm rear shock model, which has a travel of 150mm. Bike rear shocks are a great way to increase comfort on the bike and give you more control when riding on technical trails. In short, a full-suspension bike will give you the smoothest ride possible.
Wheels size
As for the wheels, YT JEFFSY Base 29 2021, has a 29″ aluminum model. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
When you want to stop the bike in time, the brakes are vital. The JEFFSY Base 29 has Hydraulic Disc brakes. These kinds of brakes are among the most popular models used on bikes. To sum up, these are ideal for anyone.
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.