USD 1,949.00

usually: USD 2,599.00

includes import tax & duty

  • S
    in stock
  • M
    in stock
  • L
    in stock
  • XL
    in stock

JEFFSY is ready to be your new bro and wingman. You’re going to be the new dream team. Whether on your home trails or crossing high mountains, JEFFSY scales the toughest peaks with unbelievable drive and traction, and inspires you to unexpected performances. JEFFSY lets you discover the most remote locations, climb the highest peaks, and keep it pinned on the way back down. Because JEFFSY is the YT of All Mountain bikes, it won’t hold you back even in the roughest terrain. Thanks to its gravity oriented geometry JEFFSY remains agile and playful, even with the 29” wheels. And to meet our high design standards we gave JEFFSY super compact proportions – you two are going to get a lot of looks!

    The hydro-formed aluminum frame of the JEFFSY AL impresses with a compact silhouette which is visually very close to the JEFFSY CF. The aggressive headtube angle, low stand over height and the compact chain stays, which are optimized for each frame size, all contribute to creating a 29er that does not handle like a typical big wheeler. Thanks to the integrated Flip Chip, JEFFSY adapts to different terrain with ease: in the Low setting the head angle is more aggressive and the BB drop more pronounced, perfect for fast and rough descending. In the High position you gain ground clearance and agility for slicing and dicing your way through the woods.

    Our V4L suspension technology has proven itself beyond any doubt on our gravity bikes, now here it is for the first time on a trail bike. V4L provides sensitive suspension action with perfect mid-stroke support and bottom out resistance. This does not only give you the confidence needed for big gaps and rugged terrain but also makes pedaling a lot more efficient. And similarly to the JEFFSY CF, the aluminum frame’s tube walls have been made thicker where required, to make sure they can withstand the forces generated in critical areas.

    Our entry level All Mountain bike with the killer price tag. Even on the JEFFSY AL Two model you can expect a high-level build: The RockShox Pike RC and Monarch R are ready for any adventure, the 2x11 transmission ensures you can always find the right gear, while SRAM’s Guide R brakes are there to slow you down safely when needed. Naturally, a RockShox Reverb Stealth, a wide-bar Race Face cockpit, and tough and reliable Onza Ibex tires are all part of the stock spec as well.


    JEFFSY Aluminium 29"

    air-formed aluminum frame, V4L Virtual 4-Link rear suspension, 148x12mm, DT Swiss QR Thru axle

    Rear Derailleur


    2x11spd, Type 2.1, aluminum, black



    DT Swiss M1900 Spline

    29", FW 15x100 Thru Axle, RW 12x148 Thru Axle



    RockShox Monarch R

    air shock, high volume air-can, external rebound, 7,875"x2,25"/ 200mmx57mm






    Front Tire

    Onza Ibex

    29"x2,4", FRC 55a, 120 tpi


    RockShox Pike RC

    air fork, Solo Air, low-speed compression, external rebound, tapered steerer, 15x100 QR Thru axle, 42mm Rake



    SRAM XG 1150

    11spd, 10-42 teeth


    Rear Tire

    Onza Ibex

    29"x2,4", FRC 55a, 120 tpi

    Travel front/rear

    140mm / 140mm


    SRAM PC1130

    11spd, with PowerLock



    RACE FACE Æffect

    35mm clamp, 50mm (S/M), 60mm (L/XL)



    Acros AZX-203

    ZS44|28,6 / ZS56|40


    SRAM Guide R

    4-piston 4S caliper, tool-free reach adjust, DOT 5.1



    RACE FACE Æffect

    35mm clamp, 780mm wide, 20mm rise, 8° backsweep, 5° upsweep



    RACE FACE Æffect SL

    175mm, 24t/36t, BB92


    Discs front/rear

    SRAM Centerline 200mm / 180mm


    RockShox Reverb Stealth

    internal cable routing, 125mm (S) 390mm / 150mm (M,L, XL) 440mm, 31,6mm


    Bottom Bracket




    The Sensus Lite


    SDG Fly MTN

    custom YT Logo

    Frame Size

    S / M / L / XL

    for the size that suits you best, please check the sizing-chart above


    14,0 kg / 30,9 lb

    Front Derailleur

    SRAM GX 2x11


    Sizes   S   M   L   XL  
    A Toptube length  571 mm 592 mm 616 mm 637 mm
    B Reach  405 mm 425 mm 445 mm 465 mm
    C Stack  605 mm 610 mm 623 mm 628 mm
    D Seattube length  400 mm 440 mm 480 mm 520 mm
    E Chainstay length  435 mm 435 mm 440 mm 440 mm
    F Headtube angle low/high  67 / 67,5 ° 67 / 67,5 ° 67 / 67,5 ° 67 / 67,5 °
    G Seattube angle (eff.) low/high  74,5 / 75 ° 74,5 / 75 ° 74,5 / 75 ° 74,5 / 75 °
    H BB Drop low/high  32/24 mm 32/24 mm 32/24 mm 32/24 mm
    I Wheelbase  1132 mm 1154 mm 1178 mm 1205 mm
    J Headtube length  90 mm 95 mm 110 mm 115 mm
    K Steerer tube length  551 mm 551 mm 551 mm 551 mm
    L Fork offset  46 mm 46 mm 46 mm 46 mm

    The perfect match: JEFFSY and the THIRSTMASTER 3000.

    JEFFSY is exactly the right choice for extended trail rides, for the high alpine, for rocky, rooty terrain and rowdy descents. With tons of traction from the 29“ wheels JEFFSY takes you up any climb, and when it comes time to descend, the bigger wheels provide a smoother ride and better rollover capabilities. JEFFSY is a true weapon on the trail, with lots of gravity potential and appetite for the rough stuff. If your focus is on very aggressive riding and bike park days, you should take a look at our enduro beast, the CAPRA. Those who like to ride their JEFFSY often and hard should check it for damages after every ride, and comply with maintenance and service intervals. That’s the only way you’ll enjoy good times with your best friend for a long time.

    The bikes pictured may differ in certain details from the stock model and may feature optional equipment available at extra cost. Any information about delivery, appearance, dimensions and weights of bikes is provided without obligation and is subject to errors as well as printing and typing mistakes; furthermore we reserve the right to make any changes. No rights can be derived from incorrect information.