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2025 YT Jeffsy Primus 24 Bike

24 01
24 01
24 02
24 03
24 chip
24 01 24 02 24 03 24 chip
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Where To Buy
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.

Specifications

Product
YT Jeffsy Primus 24 Bike
Model Year
2025
Intended Use
Enduro / All-Mountain
Trail
Rider
Kids
Sizes and Geometry
One Size (low, high)
View Full Geometry
Sizes Additional Info
• Geometry adjustable via two-position flip chip in rear shock mount
• Intended for riders approximately 135-150cm (4'5"-4'11") tall
• All specifications listed are with 130mm travel fork with 42mm offset
View Full Geometry
Wheel Size
Other: 24"
Frame Material
Aluminum
Frame Material Details
Forged, multi-butted, hydro-formed alloy; bolt-on PA66 down tube protection; molded TPE rubber seatstay and chainstay protection; integrated chainsuck plate
Rear Travel
130mm
Rear Shock
Manitou Mara Inline, 4-way compression adjust, rebound adjust, custom lightweight tune, 190mm length x 40mm stroke
Fork
Manitou Machete JUNIT, air spring, rebound adjust, custom lightweight tune, 32mm stanchions, 42mm offset
Fork Travel
130mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
ACROS AZX-576, ZeroStack
Handlebar
SDG Slater Alloy, 650mm width, 20mm rise, 8° backsweep, 5° upsweep, 31.8mm clamp diameter
Stem
SDG Slater JR Alloy, 40mm length, 3° rise, 31.8mm bar clamp
Grips
SDG Slater JR, lock-on
Brakes
SRAM G2 R, 4-piston
Rotors: SRAM CenterLine, 160mm
Brake Levers
SRAM G2 R, tool-free reach adjust
Drivetrain
1x
Shifters
SRAM NX, 11-speed
Front Derailleur
None
Rear Derailleur
SRAM NX, 11-speed
ISCG Tabs
ISCG05
Chainguide
None
Cranks
SRAM X1 Alloy DUB, 155mm length
Chainrings
SRAM X1, 30 tooth
Bottom Bracket
SRAM DUB
Pedals
None
Chain
 
Cassette
SRAM PG-1130, 11-speed, 11-42 tooth
Rims
SUNringlé Düroc 30 Alloy, 26mm inner width
Hubs
SUNringlé Düroc wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with HG driver
Spokes
SUNringlé Düroc wheelset
Tires
Front: Maxxis Minion DHF, 3C MaxxTerra compound, EXO casing, TR, 24" x 2.4"
Rear: Maxxis Minion DHR II, Dual compound, EXO casing, TR, 24" x 2.3"
Saddle
SDG Fly JR, YT Custom, 122mm width
Seatpost
YT Postman V2 dropper, 100mm drop adjustable in 5/10/20mm increments
Seatpost Diameter
31.6mm
Seatpost Clamp
Single bolt
Rear Dropout / Hub Dimensions
12mm x 148mm (Boost)
Max. Tire Size
 
Bottle Cage Mounts
None
Colors
Lava Red
Warranty
5 years frame
Weight
27 lb 12.5 oz (12,600 g)
Miscellaneous
• V4L (Virtual 4-Link) rear suspension design
• Internal cable routing
• Intended for riders approximately 135-150cm (4'5"-4'11") tall
• Geometry adjustable via two-position flip chip in rear shock mount
Price
$2,299.00
More Info

YT JEFFSY PRIMUS 24, 26, and Now 27: Small in Size, Big on Performance (2023 press release)

YT website

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Where To Buy
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
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