YT
Jeffsy 29 Core 1 AL
Gallery
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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 | 144mm | 144mm | 144mm | 144mm | 144mm |
| Dropper post travel | 170mm | 150mm | 125mm | 200mm | 200mm |
| Seatpost offset | — | — | — | — | — |
Specs
Full specs
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Specs
Full specs
Frame
Frame
YT frame (size S–XXL)
Suspension
Rear shock
Marzocchi Bomber Air (210x55mm, sweep adjust, custom tune, 0.6 spacer)
Fork
Marzocchi Bomber Z1 (29", 150mm, Rail 2.0 damper, 15x110mm, 44mm offset)
Brakes
Front brake
SRAM DB8 (Maxima Mineral Oil)
Rear brake
SRAM DB8 (Maxima Mineral Oil)
Front rotor
SRAM CenterLine 200mm
Rear rotor
SRAM CenterLine 200mm
Drivetrain
Shift levers
Shimano Deore SL-M6100-R (12-speed, Rapidfire Plus, 2-Way-Release)
Rear derailleur
Shimano Deore RD-M6100 (12-speed, Shadow+)
Cassette
Shimano Deore CS-M6100 (12-speed, 10-51T, Hyperglide+)
Chain
Shimano 12-speed chain
Crankset
Shimano FC-M512 (170mm, 32T)
Bottom bracket
Shimano BB-MT501 (BSA, 24mm)
Cockpit
Stem
YT Stem 35 (50mm, +/-0°, Black)
Handlebars
YT Handlebar (780mm width, 30mm rise, 8° backsweep, 6° upsweep, Black)
Grips
ODI Elite Motion V2.1 (lock-on)
Saddle
YT Saddle (YT Custom, 144mm width)
Seatpost
YT Seatpost (31.6mm; 125mm (S) / 150mm (M) / 170mm (L) / 200mm (XL, XXL))
Wheels & Tires
Front wheel
SunRingle SR329 Trail Comp (29", 30mm internal, 15x110mm, 6-bolt)
Rear wheel
SunRingle SR329 Trail Comp (29", 30mm internal, 12x148mm, 6-bolt, HG freehub)
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
16.50 kg / 36.37 lb (avg for smallest size, tubeless, no pedals or bottle)