YT JEFFSY Core 4 MTB All Mountain Carbon Black Magic

JEFFSY
Far out or nothing: JEFFSY is a refined trail bike for every corner of the map, forged with gravity in its very DNA. It's your partner in crime. Your co-pilot. Your accomplice. It's a friend to push you forward, never holding you back, as together you rise to any challenge. With cutting-edge frame design and innovative features, JEFFSY radiates speed, even at a standstill. This is the next evolution of a proven formula, and with it, we go above and beyond in our pursuit of Trail Excellence.

CORE 4
Day in, day out rippers, this is where it's at! JEFFSY CORE 4 is stacked with innovative, performance-focused components and is locked and loaded for unrelenting speed on your favorite trails. Formed from High-Modulus carbon and dripping with high-end parts, this trail bike is an extension of you, and together, you'll unite to dominate any challenge. This CORE 4 spec goes big, harnessing bleeding-edge tech from RockShox and SRAM to bring control and elevate your trail-slaying game in the process.

Technical Specifications

Frame
• Material: High-Modulus Carbon
• Features: YT Stash Internal Frame Storage, Top Tube Rivets, Internal Cable Routing, UDH Hanger
• Kinematics: Rider Centered Geometry, Flip Chip, Virtual Four Link, Size-Specific Rear

Wheels
• CRANKBROTHERS SYNTHESIS ENDURO ALLOY
• Front: Aluminum Rims 29, Inner Width 31.5mm, Hub 110x15mm
• Rear: Aluminum Rims 29, Inner Width 29.5mm, Hub 148x12mm, Freehub XD

Tyres
• Front: MAXXIS MINION DHF, 29x2.50, EXO+ Casing, 3C MaxxTerra, Tubeless Ready
• Rear: MAXXIS MINION DHR II, 29x2.40, EXO+ Casing, 3C MaxxTerra, Tubeless Ready

Suspension
• Fork: ROCKSHOX LYRIK ULTIMATE, 150mm Travel, Charger 3, 110x15mm Axle, Offset 44mm
• Shock: ROCKSHOX SDLX ULTIMATE, 145mm Travel, Length: 210x55mm, RC2T, 0L2 Volume Reducer

Drivetrain
• Crankset: SRAM GX EAGLE TRANSMISSION, Crank Arm Length 170mm, 32T, 2 Guards DUB
• Cassette: SRAM GX EAGLE TRANSMISSION, 11-52T, T-Type, 12-speed
• Rear Derailleur: SRAM GX EAGLE TRANSMISSION, 12-speed
• Shifter: SRAM AXS ROCKER PADDLE
• Bottom Bracket: SRAM DUB PF 92 MTB WIDE

Components
• Headset: CANE CREEK SERIES 40, ZS44 ZS56, High Cap, 2 Spacer 5mm
• Stem: RENTHAL APEX 35, Length 50mm, 35mm Clamp, Rise +/-6°, Black/Black
• Handlebar: RENTHAL AL2014, Width 780mm, Rise 30mm, 7° Back Sweep, 5° Up Sweep, 6061 AL
• Grips: ODI ELITE MOTION V2.1 Lock-on
• Saddle: SDG BEL AIR 3.0, YT Custom, Width 140mm, Lux-Alloy Rail

Brakes
• SRAM CODE RSC
• Front Rotor: SRAM CENTERLINE 200mm
• Rear Rotor: SRAM CENTERLINE 200mm

Seatpost
• YT POSTMAN V2, 31,6mm, Adjustable drop 20/10/5mm
• MMX-Remote
• 125 mm (S)
• 150 mm (M)
• 170 mm (L)
• 200 mm (XL)
• 230mm (XXL)

Extras
• Hydration: YT THIRSTMASTER 6000, 620ml bottle and cage included, BPA free, easy to clean
• Tool: Stashed neatly into the rear axle, a YT custom, removable HEX6 tool
• YT Stash: Stash Bag, 2 included
• External Storage: CRANKBROTHERS, S.O.S TS2 Tube Stash

Weight
• 15.10 KG / 33.29 LBS
• Average weight for smallest size available, without tubes, pedals, and bottle.

The ALL NEW JEFFSY Geometry

Measurements: millimeters (mm)
Flip Chip position: Low

Frame size, guideline for best fit
• S: 153 cm - 166 cm (5'0" - 5'5")
• M: 162 cm - 176 cm (5'4" - 5'9")
• L: 172 cm - 185 cm (5'8" - 6'1")
• XL: 181 cm - 194 cm (5'11" - 6'4")
• XXL: 190 cm - 203 cm (6'3" - 6'8")