YT
Jeffsy 29 Core 4 CF
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Geometry
Geometry
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Geometry
Geometry
Frame geometry
| Geometry | L | M | S | XL | XXL |
|---|---|---|---|---|---|
| Stack | 627mm | 620mm | 613mm | 634mm | 642mm |
| Reach | 475mm | 455mm | 435mm | 495mm | 515mm |
| Headtube length | 116mm | 108mm | 100mm | 124mm | 132mm |
| Headtube angle | 65deg | 65deg | 65deg | 65deg | 65deg |
| BB height | 343mm | 343mm | 343mm | 343mm | 343mm |
| BB drop | 33mm | 33mm | 33mm | 33mm | 33mm |
| Trail | — | — | — | — | — |
| Fork length | — | — | — | — | — |
| Fork offset | — | — | — | — | — |
| Front center | — | — | — | — | — |
| Chainstay length | 437mm | 437mm | 437mm | 442mm | 442mm |
| Wheelbase | 1238mm | 1214mm | 1191mm | 1289mm | — |
| Top tube | 609mm | 593mm | 578mm | 627mm | 645mm |
| Standover height | 732mm | 728mm | 730mm | 738mm | 742mm |
| Seat tube length | 435mm | 410mm | 385mm | 460mm | 485mm |
| Seat tube angle | 77.9deg | 77.5deg | 76.9deg | 78.3deg | 78.6deg |
Spec geometry
| Geometry | L | M | S | XL | XXL |
|---|---|---|---|---|---|
| Crank length | 170mm | 170mm | 170mm | 170mm | 170mm |
| Stem length | 50mm | 50mm | 50mm | 50mm | 50mm |
| Handlebar width | 780mm | 780mm | 780mm | 780mm | 780mm |
| Handlebar reach | — | — | — | — | — |
| Handlebar drop | — | — | — | — | — |
| Saddle width | 140mm | 140mm | 140mm | 140mm | 140mm |
| Dropper post travel | 170mm | 150mm | 125mm | 200mm | 230mm |
| Seatpost offset | — | — | — | — | — |
Specs
Full specs
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Specs
Full specs
Frame
Frame
YT full-suspension frame w/ YT STASH downtube storage
Suspension
Rear shock
Fox Float X Factory, 210x55mm, 2-position lever, custom tune (145mm travel)
Fork
Fox 36 Float Factory, 29", 150mm, GRIP X2, 44mm offset, 15x110mm
Brakes
Front brake
Hayes Dominion A4 (Stealth black/grey)
Rear brake
Hayes Dominion A4 (Stealth black/grey)
Front rotor
SRAM HS2, 203mm
Rear rotor
SRAM HS2, 203mm
Drivetrain
Shift levers
SRAM POD Ultimate Controller, 12-speed
Rear derailleur
SRAM X0 Eagle Transmission, 12-speed, T-Type
Cassette
SRAM X0 1295 Transmission, 12-speed, 10-52T, T-Type
Chain
SRAM Eagle Transmission (T-Type) 12-speed
Crankset
SRAM X0 Eagle Transmission, 170mm, 32T, 2 guards, DUB
Bottom bracket
SRAM DUB PressFit PF92 MTB Wide
Cockpit
Stem
Renthal Apex 35, 50mm, 35mm clamp, +/-6°
Handlebars
Renthal Fatbar 35, 780mm width, 30mm rise, 7° backsweep, 5° upsweep
Grips
ODI Elite Motion V2.1 (lock-on)
Saddle
SDG Bel-Air 3.0 Overland (YT custom), 140mm, Lux-Alloy rails
Seatpost
YT Postman V2, 31.6mm, MMX remote, adjustable drop (S:125mm / M:150mm / L:170mm / XL:200mm / XXL:230mm)
Wheels & Tires
Front wheel
DT Swiss EXC 1501 Spline One, 29", 30mm internal, 110x15mm, 6-bolt
Rear wheel
DT Swiss EXC 1501 Spline One, 29", 30mm internal, 148x12mm, 240 Ratchet DEG 90, 6-bolt, XD
Front tire
Maxxis Minion DHF, 29x2.50, EXO+ casing, 3C MaxxTerra, Tubeless Ready
Rear tire
Maxxis Minion DHR II, 29x2.40, EXO+ casing, 3C MaxxTerra, Tubeless Ready
Weight
Weight
14.60 kg / 32.18 lb (avg for smallest size, tubeless, no pedals or bottle)