 |  |  |
|---|
MSRP | $1,599 | $1,999 | $2,199 |
|---|---|---|---|
Where to Buy | $1,599 20% off At YT Industries | $1,999 9% off At YT Industries | $2,199 8% off At YT Industries |
Category | Mountain Youth | Mountain Youth | Mountain Youth |
Weight | 27.8 lbs | 30.9 lbs | 33.7 lbs |
| Aluminum | Aluminum | Aluminum | |
Fork | Manitou Machete JUNIT | RockShox Reba | RockShox Lyrik |
Wheels | Aluminum | Aluminum | Aluminum |
| 24″ | 26″ | 27.5″ | |
Brakes | Hydraulic Disc | Hydraulic Disc | Hydraulic Disc |
Groupset | NX, X1 | SX Eagle | SX Eagle |
Drivetrain | 1 × 11 | 1 × 12 | 1 × 12 |
Suspension | Full | Full | Full |
Front Travel | 130mm | 140mm | 150mm |
Rear Travel | 130mm | 140mm | 150mm |
Brand Site | |||
Summary | The YT Industries Jeffsy Primus 24, YT Industries Jeffsy Primus 26, and YT Industries Jeffsy Primus 27 are all aluminum frame mountain youth bikes with hydraulic disc brakes. The Jeffsy Primus 24 has 24″ aluminum wheels and better components, the Jeffsy Primus 26 has 26″ aluminum wheels, and the Jeffsy Primus 27 has 27.5″ aluminum wheels, a better fork, more travel, and higher gearing. | ||
Based on frame geometry and build specs.
Fork | MANITOU MACHETE JUNIT, 24“ | 130 mm Travel | 110 x 15 mm Axle | Offset 42 mm Adjustable Rebound, Air Pressure Travel: 130mm Spring Type: Air | ROCKSHOX REBA, 26“ | 140 mm Travel | 100 x 15 mm Axle | Offset 40 mm | Adjustable Rebound, Air Pressure Travel: 130mm Spring Type: Air | ROCKSHOX LYRIK BASE, 27.5“ | 150 mm Travel | RC | 100 x 15 mm Axle | Offset 44 mm | Adjustable Rebound, Air Pressure Travel: 130mm Spring Type: Air |
|---|---|---|---|
Shock | MANITOU MCLEOD, Shock Length: 190 mm | Shock Stroke: 40 mm ≙ 130 mm Travel 4-way Adjustable Compression, Rebound, Air Pressure Travel: 140mm Spring Type: Air | ROCKSHOX DELUXE SELECT, Shock Length: 190 mm | Shock Stroke: 45 mm ≙ 140 mm Travel | Adjustable Rebound, Air Pressure, Custom Tune Travel: 140mm Spring Type: Air | ROCKSHOX DELUXE SELECT, Shock Length: 230 mm | Shock Stroke: 60 mm ≙ 150 mm Travel | Adjustable Rebound, Air Pressure, Custom Tune 0L1 Travel: 140mm Spring Type: Air |
Headset | ACROS AZX-576, High Cap | 2 Spacer 5 mm | ACROS AZX-576, High Cap | 2 Spacer 5 mm | ACROS AZX-576, High Cap | 2 Spacer 5 mm |
Stem | SDG JR, Length 40 mm | 31,8 mm Clamp | Rise +/-3° | E13 BASE 35, Length 40 mm | 35 mm Clamp | Rise 0° | 6061 AL | E13 BASE 35, Length 40 mm | 35 mm Clamp | Rise 0° | 6061 AL |
Handlebar | SDG SLATER, Width 650 mm | Rise 20 mm | 8° Back Sweep | 5° Up Sweep | E13 BASE 35, Width 760 mm | Rise 20 mm | 9° Back Sweep | 5° Up Sweep | 6061 AL | E13 BASE 35, Width 760 mm | Rise 20 mm | 9° Back Sweep | 5° Up Sweep | 6061 AL |
Saddle | YT Custom | Width 122 mm | SDG BEL AIR 3.0, YT Custom | Width 140 mm I Lux-Alloy Rail | SDG BEL AIR 3.0, YT Custom | Width 140 mm I Lux-Alloy Rail |
Seatpost | YT POSTMAN V2, Ø 31.6 mm | 100 mm | Std. Remote I Adjustable drop 20 / 10 / 5 mm | YT POSTMAN V2, Ø 31.6 mm | Length 100 mm | Standard-Remote | Adjustable drop 20 / 10 / 5mm | YT POSTMAN V2, Ø 31.6 mm | 125 mm | Std. Remote I Adjustable drop 20 / 10 / 5 mm |
Grips | SDJ SLATER JR, Lock On | ODI ELITE MOTION V2.1, Lock On | ODI ELITE MOTION V2.1, Lock On |
Rear Derailleur | SRAM NX, 11-speed | SRAM SX EAGLE, 12-speed | SRAM SX EAGLE, 12-speed |
|---|---|---|---|
Crank | SRAM X1, Crank Arm Length 155 mm | 30 T | DUB | SRAM SX EAGLE, Crank Arm Length 165 mm | 30T | DUB | SRAM SX EAGLE, Crank Arm Length 165 mm | 32T | DUB |
Shifters | SRAM NX, 11-speed | SRAM SX EAGLE, 12-speed | SRAM SX EAGLE, 12-speed |
Cassette | SRAM PG1130, 11-42T | 11-speed | SRAM PG1210 Eagle, 11-50T | 12-speed | SRAM PG1210 Eagle, 11-50T | 12-speed |
Brakes | SRAM G2 R, Rotor CENTERLINE Ø front 160 mm / rear 160 mm Adjustable Reach | SRAM G2 R, Rotor CENTERLINE Ø front 160 mm / rear 160 mm, Adjustable Reach | SRAM G2 R, Rotor CENTERLINE Ø front 200 mm / rear 200 mm Adjustable Reach |
Rims | SUNRINGLÉ DUROC 30, Aluminum Rims 24“ | Inner Width 26 mm | Front Hub 110 x 15 mm | Rear Hub 148 x 12 mm | Freehub HG | SUNRINGLÉ DUROC, Aluminum Rims 26“ | Inner Width 26 mm | Front Hub 100 x 15 mm, Rear Hub 148 x 12 mm | CRANKBROTHERS Synthesis Enduro 2 Alloy, Aluminum Rims 27.5“ | Inner Width 31.5/29.5 mm | Front Hub 15 x 100mm Boost | Rear Hub 148 x 12 mm |
|---|---|---|---|
Tires | FRONT: MAXXIS MINION DHF I REAR: MAXXIS MINION DHR II, Front: Tire Size 24“ x 2.4 I EXO Casing I 3C MaxxTerra Compound I Tubeless Ready I, Rear: Tire Size 24“ x 2.3 I EXO Casing I Dual Compound I Tubeless Ready | MAXXIS MINION DHR II, Front: Tire Size 26“ x 2.4 I EXO Casing I 3C MaxxTerra Compound I Tubeless Ready, Rear: Tire Size 26“ x 2.3 I EXO Casing I Dual Compound I Tubeless Ready | FRONT: MAXXIS MINION DHF I REAR: MAXXIS MINION DHR II, Front: Tire Size 27.5“ x 2.4 I EXO Casing I 3C MaxxTerra Compound I Tubeless Ready I, Rear: Tire Size 27.5“ x 2.3 I EXO Casing I Dual Compound I Tubeless Ready |