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YT JEFFSY | CORE Range Overview
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YT JEFFSY | CORE Range Overview

2023/11/02

Now in its third iteration, JEFFSY rewrites the rulebook for trail bike performance. Longer, lower, slacker may be a cliche, but here it means control – the Rider Centered Geometry brings absolute balance to your rides, and with the new YT STASH box, we elevate your storage game. No half measures; only Trail Excellence. Get to know the lineup below in our YT JEFFSY CORE range overview.

JEFFSY CORE 4 Emma Olofsson Alps 1

The YT JEFFSY CORE Range

JEFFSY CORE 3 Alps Descent

With five CORE models to choose from, there is a JEFFSY for every budget and style. It’s our first bike to stretch from the budget-brawler CORE 1 level right up to the no-holds-barred CORE 5.

Whichever you choose, know this: Each CORE model provides a level of performance that stretches above and beyond its price point, delivering killer value and trail-ripping prowess for every budget.  

Which one you choose is up to you – every JEFFSY features our confidence-inspiring Rider Centered Geometry for unrivaled balance and capability, the all-new Postman V2 dropper post with adjustable travel, and a Thirstmaster 6000 bottle and cage. Carbon models receive the YT STASH downtube storage, and CORE 4 & 5 include a Crankbrothers SOS Tube Stash on-frame storage mount.

Jack Moir YT JEFFSY MK3 Side On

Top of the Food Chain: Look no further, this is peak performance. Right down to the finest detail, each component is proven at the highest level, offering an unmatched degree of tuning and quality. 

YT JEFFSY CORE 5

Spec Highlights

  • FOX Factory Suspension
  • Ultra Modulus Carbon Frame
  • YT STASH Downtube Storage
  • Thirstmaster 6000
  • Rider Centered Geometry
  • Frame Protection

FOX FACTORY SUSPENSION

At FOX Factory level, you strike gold with the Kashima coating. This slick stanchion finish eliminates excess friction for plush performance and rich traction, while pro-level GRIP2 damper adjustment offers limitless tuning options to dial in your settings.

YT JEFFSY CORE 4 Emma Olofsson Side On

Performance is Key: Showcasing performance components, this build is ready to stand the test of time and is locked and loaded for unrelenting speed on your favorite trails.

Spec Highlights

  • RockShox Ultimate Suspension
  • High Modulus Carbon Frame
  • YT STASH Downtube Storage
  • Thirstmaster 6000
  • Rider Centered Geometry
  • Frame Protection
YT JEFFSY CORE 4

ROCKSHOX ULTIMATE SUSPENSION

RockShox is one of the big dogs of suspension, and the ULTIMATE lineup proves why. These products are loaded with innovative tech and aim to enhance traction, comfort, and full-speed performance.

YT JEFFSY CORE 3 Hike a Bike

Ridden and Rated: With a series of field-tested components and a carbon fiber frame, this model fuses proven performance with scorching bang for buck to make any rider’s day. 

YT JEFFSY CORE 3

Spec Highlights

  • FOX Performance Suspension
  • High Modulus Carbon Frame
  • YT STASH Downtube Storage
  • Thirstmaster 6000
  • Rider Centered Geometry
  • Frame Protection

FOX PERFORMANCE SUSPENSION

With the FOX Performance range, it’s easy to find your zen. This lineup features plush performance and simple, effective adjustment while retaining many high-end features. So, less time tuning and more time shredding.

YT JEFFSY CORE 2 Side On Shot

Full-Metal, Full-Throttle: Endless durability meets affordable performance – with a shred-worthy, easy to setup build kit, this model delivers everything you need to light up the trails.

Spec Highlights

  • FOX Performance Suspension
  • Full-Metal / Alloy Frame
  • Thirstmaster 6000
  • Rider Centered Geometry
  • Flip Chip
  • Frame Protection
YT JEFFSY CORE 2

Choosing between the YT JEFFSY CORE 2 and 3

The JEFFSY CORE 2 and 3 offer you a choice: Carbon, or aluminum. Both are lightweight, durable, and fast off the mark, and feature the same tried and tested specification, differing only in their frame material. For peak-performance and YT STASH storage, choose the carbon fiber JEFFSY CORE 3. Or, to keep if thrifty and save some cash for epic, backcountry adventures, pick the full-metal CORE 2.

YT JEFFSY CORE 1 Side On Shot

Ballin’ on a Budget: Good times shouldn’t break the bank. For your first taste of mountain biking to your thousandth, this ride is the ultimate catalyst for rider progression.

YT JEFFSY CORE 1

Spec Highlights

  • RockShox Base Suspension
  • Full Metal / Alloy Frame
  • Thirstmaster 6000
  • Rider Centered Geometry
  • Flip Chip
  • Frame Protection

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