yt Industries Jeffsy Primus 26 2021
2021 Youth
Estimate price |
2,671$
Weight | 14.2 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame aluminium -
Wheels 26" -
Travel Front 140mm -
Travel Rear 140mm -
Fork Manitou Machete Comp
-
Groupset SX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
One Size
145cm - 160cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Aluminum
Suspension Fork
MANITOU MACHETE JUNIT, 26“ | 140 mm Travel | 100 x 15 mm Axle | Offset 41 mm Adjustable Rebound, Air Pressure
Rear Shock
ROCKSHOX DELUXE SELECT+, Shock Length: 190 mm | Shock Stroke: 45 mm ? 140 mm Travel 2-pos lever, Lockout, Adjustable Compression, Rebound, Air Pressure, Custom Tune
Drivetrain
Rear Derailleur
SRAM SX EAGLE, 12-speed
Shift Levers
SRAM SX EAGLE, 12-speed
Cassette
SRAM PG1210 Eagle, 11-50T | 12-speed
Crank
SRAM SX EAGLE, Crank Arm Length 165 mm | 34 T | DUB
Wheels
Rims
SUNRINGLÉ DUROC, Aluminum Rims 26“ | Inner Width 30 mm | Front Hub 100 x 15 mm | Rear Hub 148 x 12 mm
Tires
FRONT: MAXXIS MINION DHF I HINTEN: MAXXIS MINION DHR II, Front: Tire Size 26“ x 2.4 I EXO Casing I 3C MaxxTerra Compound I Tubeless Ready I Rear: Tire Size 26“ x 2.3 I EXO Casing I Dual Compound I Tubeless Ready
Brakes
Brakes
SRAM Guide R Custom, Rotor CENTERLINE Ø front 180 mm / rear 180 mm Adjustable Reach
Cockpit
Stem
E13 BASE 35, Length 40 mm | 35 mm Clamp | Rise 0° | 6061 AL
Handlebar
E13 BASE 35, Width 760 mm | Rise 20 mm | 9° Back Sweep | 5° Up Sweep | 6061 AL
Grips
ODI ELITE MOTION V2.1, Lock On
Headset
ACROS AZX-576, High Cap | 2 Spacer 5 mm
Seat
Saddle
SDG RADAR MNT, YT Custom | Width 138 mm
Seatpost
YT POSTMAN, Ø 31.6 mm | Length 100 mm | Standard-Remote
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | One Size |
|---|---|
| Stack Reach Ratio | 1.38 mm |
| Bottom Bracket Height | 349 mm |
| Front Center | 690 mm |
| Rake | 41 mm |
| Stack | 555 mm |
| Reach | 403 mm |
| Top Tube Length | 539 mm |
| Seat Tube Angle | 76.5 ° |
| Seat Tube Length | 355 mm |
| Head Tube Angle | 65.5 ° |
| Head Tube Length | 95 mm |
| Chainstay Length | 421 mm |
| Wheelbase | 1111 mm |
| Bottom Bracket Drop | 4 mm |
| Wheels | 26" |
| Rider Min Height | 145 cm |
| Rider Max Height | 160 cm |
Model Overview
Jeffsy Primus 26 is part of the Yt Jeffsy model. 64 bikes variations carry this model name so far. 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
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.
Mountain bikes average price
According to our math, the average price for a trustworthy Mountain bike is 616$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Mountain bike. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
This bike was released in 2021 and its price was 2356$. In conclusion, this bike price is 282.47% more expensive than the price of the average Mountain bike.
Average weight for Mountain bikes
If we make a quick analysis of the average weight of a Mountain bike, we get 11.4 kg (25.13 lbs). You will have a greater advantage on climbs if your bike is easier than the average. On descents, however, a heavier bike will give you extra speed.
YT Industries Jeffsy Primus 26 it’s weighing 14.2 kg (31.31 lbs). At this weight, is much heavier than average. In other words, this model is 24.56% heavier than the average Mountain bike.
Overview of components
Fork
The fork installed on this bike is the Manitou Machete Comp model. The travel on this model is 140mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, you should always ensure you have a good fork when purchasing a bike.
Rear Shock
The Jeffsy Primus 26 has a rear shock with a travel of 140mm. The model ROCKSHOX DELUXE SELECT+ is the one installed in this bike. Bike rear shocks increase the riding comfort, and also give you more control over technical trails. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels
The wheels on Jeffsy Primus 26 are the 26″ aluminum type. These wheels give you great handling over your bike. However, they are less forgiving when riding over obstacles such as bumps and roots.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, your safety is in good hands.
Sizes
YT Industries Jeffsy Primus 26 2021 is available in one size only. In conclusion, double-check its size to make sure it’s a good fit for you.
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.