Giant Junior 20-Inch 8-Speed Kids Mountain Bike | High-Performance Youth MTB
Engineered specifically for young riders aiming for real trail adventures! Built on a lightweight and durable ALUXX-grade aluminum frame, the Giant Junior features a coil-sprung suspension fork, a precise MicroShift Acolyte 8-speed drivetrain, and child-ergonomic Tektro hydraulic disc brakes to ensure safety, control, and fun on every ride.
💡 Product Key Highlights:
- Dedicated Lightweight Frame: ALUXX-grade aluminum frame combining high strength with light weight, optimized for youth riding geometries.
- All-Weather Precision Braking: Equipped with Tektro youth-specific short-reach hydraulic disc brakes for light, responsive stopping power and enhanced safety.
- Intuitive Drivetrain: Powered by a MicroShift Acolyte 1x8 speed system with small-hand trigger shifters and a short cage rear derailleur with a spring lock for rugged terrain stability.
- Superior Traction & Dampening: Paired with Kenda Amrak 20x2.2 high-volume tires and TRA 2 wideguard rims to effortlessly conquer light off-road trails.
Key Features
- ALUXX Aluminum Frame: Sturdy, durable, and lightweight, featuring a frame geometry optimized for children and teens.
- MicroShift Acolyte 1x8 Drivetrain: Super short cage rear derailleur with spring lock for increased ground clearance, paired with ergonomic trigger shifters for smooth, intuitive shifting.
- Tektro Hydraulic Disc Brakes: Youth-designed short-reach levers delivering stable, reliable stopping power.
- Kenda Amrak 20x2.2 Tires: High-traction tread offering superior shock absorption to tackle varied light off-road paths.
Specifications
| Specification Item | Details |
|---|---|
| Frame | ALUXX-Grade Aluminum, 12x1 thru-axle |
| Fork | SR XCT JR L20 coil spring, 63mm travel, 9x100mm QR |
| Handlebar / Stem | Giant Sport Alloy, Low / Forged Alloy, 0-Degree |
| Grip / Saddle | Giant Junior / New GRIT JR |
| Seatpost | Alloy rigid 2 bolt, 30.9mm x 260mm |
| Shifters / Derailleur | MicroShift Acolyte 1x8 (SL-M6280-R Trigger / RD-M5185S Rear Derailleur) |
| Brakes / Levers | Tektro HD-J2820 Hydraulic Disc Brakes |
| Cassette / Chain | CS-H083 11-38T, 8-speed / KMC Z8.1 |
| Crankset | ProWheel Forged Alloy 30T steel narrow-wide w/ CG, 105mm |
| Rims / Hubs | TRA 2, 20" w/ wideguard / Giant Tracker M50-F & M9201-R |
| Tires | Kenda Amrak, 20x2.2 |
📏 Rider Height & Size Recommendation Guide
To ensure optimal riding comfort and handling safety, please refer to the height and wheel size guide below to choose the best fit:
| Series | Wheel Size | Recommended Height |
|---|---|---|
| STP 20 Series | 20 Inches | 110 cm – 130 cm |
| STP 24 Series | 24 Inches | 125 cm – 145 cm |
| STP 26 Series | 26 Inches | Advanced Youths & Adults |