JEFFSY is here for the good times. And to stay when things get nasty.
Some encounters change your life. One short moment and nothing is like it used to be. Everything’s better.
You’ll experience this when you jump on the new JEFFSY for the first time: it will make you raise your game and turn you into the rider you always dreamed of becoming; ride every trail the way you always wanted to ride it.
To truly master both the ups and the downs, the new JEFFSY is the most versatile of all the Young Talents. A true all-mountain bike, this light and effective weapon is perfect for flowy singletrack, long backcountry adventures and racing. JEFFSY lets you climb with ease and tackle any challenge on the way back down. Because nothing is like it used to be. The new JEFFSY lets you truly redefine your riding style.
When picking the right wheel size, your personal preferences, riding style, and last but not least the terrain you ride all play an important role in your decision. With JEFFSY 29 you get the most aggressive and agile 29er on the market, full stop. The large 29“ wheels compliment the compact frame‘s silhouette perfectly, and are also responsible for the significant amount of BB drop - leaving you low in the sweet spot of the bike, feeling right at home and perfectly in control even in the wildest situations. The larger tire contact patch provides outstanding grip and unheard-of traction and drive, which you will really appreciate while racking up the kilometers during long backcountry adventures. When it comes to high-speed descending, the big wheels increase stability and keep you on track even on the roughest trails. The bigger diameter reduces harshness and helps the wheels roll more easily over rocks and roots, which makes the JEFFSY 29 suitable both for beginners and experienced riders alike.
The JEFFSY 27 is for those who prefer an even more agile and playful bike. The 27” wheels are stable, reactive and dynamic through the turns. So that you won’t have to back down in rough terrain, and because you might want to take it off a jump or two, we’ve given JEFFSY 27 a bit more suspension travel. This means you can relax when things get gnarly, and it also means that JEFFSY 27 is the right choice when it comes to dropping the hammer in your next enduro race.
At the end of the day it’s not about numbers. It’s about the rad time you had. JEFFSY 27 or JEFFSY 29: Size doesn’t matter – it’s what you do with it.
For an ever better riding experience, we have refined our award-winning V4L suspension technology. JEFFSY is very sensitive off the top, with good mid-stroke support and plenty of end-stroke progressivity and an overall poppy character, which gives you a feeling of security when taking on rough terrain and big jumps. The generous amount of anti-squat prevents unwanted suspension movement - the result is outstanding climbing efficiency with neutral suspension behavior.
The new Headbox design increases the stiffness of the steerer tube for an even more direct feel at the handlebars. Technical features like the internal cable routing, the double-sealed bearings or the integrated frame protection underline our commitment to making high-end bikes and help increase JEFFSY’s service life while also contributing to the clean looks and sleek silhouette that undoubtedly make it a YT.
“The JEFFSY is so easy on the climb and super playful pointed downhill!”
Thanks to the Flip Chip, the frame’s geometry can easily be adapted to your riding style. In the low position, the head angle is slacker and the BB drop more pronounced, for better stability when pinning it in rough terrain. In the high position, the steeper head angle and higher BB position make for easier climbing and more agility on tighter trails.
Perfectly integrated guards protect the frame against rock impacts and scratches. Made from super-tough and wear-resistant PA 66, the downtube protector is bolted on and can be easily replaced. It is designed to wrap around the bottom bracket and thus provide extra protection for the side walls of the downtube in this critical area. The chain stay and seat stay guards also help keep the noise down, so that the only sound you’ll hear on the trail is that braaaaap! we all love so much.
Race-Specific Advanced Sealing Concept, Axial Lip-Seal (RASCAL)
In addition to the industry-standard internal seals of our high-quality, double-sealed full complement bearings, we use self-developed sealing washers, that protect all suspension linkage bearings and keep water and dirt at bay. Their axial lip seals increase the useful life of the bearings considerably to make sure that every JEFFSY can withstand the burden of heavy Trail-Riding use.
Chainsuck Plate Protection
Should things get a little rough, the inconspicuous chain suck plates protect the frame from damage caused by a dropped chain. This keeps sensitive areas out of harm's way and helps prolong your frame's service life.
The contact surfaces for the integrated headset are preformed directly in the carbon structure. The homogeneity of the material in this area creates the ideal balance of weight, durability and performance. The ZeroStack design with integrated bearings ensures a long service life, while the mounting dimensions allow the use of ZS49 / ZS56 Reach Adjust headsets – pro level adjustability for everybody.
Internal Cable Routing
Developed in-house, details like internal cable routing with built-in cable guides underline our claim to fame in the world of high-quality carbon bikes. For ultimate protection, the cable is almost entirely hidden in the frame, while the perfectly integrated ports and cable clamps make for a super-clean look. Race-ready: the full-length cable guide is held in place by a bolted clamp in just one area, making it easy and fast to swap cables when needed.
V4L / Virtual Four Link
V4L is responsible for providing outstanding small bump compliance that virtually sucks you to the ground as well as great midstroke support to really optimize the use of the available travel. And the nice pop makes sure you can get airborne at a moment’s notice. So you don’t bottom out harshly even after hitting the biggest jumps, the ending stroke spring curve is very progressive. V4L supports you around the sag point, ready to absorb obstacles but without being affected by pedaling forces.