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Glerc 20" Kids 21-Speed MTB with Disc Brakes - Skyline
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Free Shipping | 2-8 Days Delivery
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2 Bikes 10% OFF | 365 Days Warranty
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Free Shipping within the USGet your kids' bike delivered to your door at no extra cost!
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365-Day WarrantyEnjoy peace of mind with our full year of coverage on every bike.
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Expert Customer SupportChat online or call us for quick, reliable solutions to your questions.
What's In The Box
Our bikes come 85% pre-assembled for easy setup. Assembly tools and additional accessories are included.
Detailed ChartSizing Chart
Our easy size chart and geometry guide show how the bike will fit your child now—and how long it will continue to fit.
| Wheel Size | Rider Age | Rider Height | Inseam | Bike Weight |
|---|---|---|---|---|
| 20" | 6-12 | 45"-55" | 21"-25" | 30 lbs |
| 24" | 9-15 | 53"-66" | 24"-29" | 34 lbs |
Delivery
Processing Time
Orders ship within 24 hours on business days. Tracking details will be sent to your order email once shipped.
Shipping Time
- 3–5 Business Days (Typically) After Shipment
Delays may occur due to weather, holidays, carrier issues, or other unforeseen factors. View Full Shipping Policy.
Top Features
- 21-Speed Gear System
- Reinforced Carbon Steel Frame
- Dual Disc Brakes
- Front Suspension Fork
- Rugged All-Terrain Tires
- 85% Pre-Assembled with Tools Included
Description
- Tough Carbon Steel Frame + Hidden Cables
Durable, crash-resistant build with internal routing — clean, safe, no snags. Confidence on any terrain. - Front & Rear Disc Brakes
Strong, reliable stopping — even in rain or steep hills. Peace of mind for parents, control for kids. - 21-Speed Gearing
Smooth, quick shifts for flats, climbs, or trails. Less effort, more fun, fewer tired complaints. - Front Suspension Fork
Absorbs bumps and shocks for comfy rides. Long adventures without sore arms or backs. - All-Terrain Tires
Thick tread grips pavement, dirt, gravel. Reliable traction + long wear — go anywhere. - Easy Setup + Growth Sizes
85% pre-assembled, tools included.
– 20": Ages 6–12 (45–55" tall)
– 24": Ages 9–15 (53–66" tall)
One bike grows with your child — great value!
Specifications
- Bike Type: Mountain Bike
- Frame: Carbon Steel
- Brakes: Dual Disc (Front & Rear)
- Gears: 21-Speed Trigger Shifter
- Handlebar: Steel, Height Adjustable
- Stem: Aluminum Quill
- Seat: Glerc Comfort, Quick Release
- Brake Lever: Aluminum
- Wheelset: Aluminum
- Weight: Check sizing chart (varies by 20"/24")
The Skyline Kids’ Mountain Bike is built for young adventurers who crave speed, freedom, and fun. Perfect for:
- Ages 6–14
- Riders exploring trails, parks, or local paths
- Kids who want smooth gears, solid control, and MTB style
From weekend rides to off-road adventures, Skyline gives young riders the tools to go further — and ride with confidence.
From trails to streets, Skyline is built for kids ready to ride.
- Reinforced Steel Frame – Durable for daily and rough rides
- Front Suspension – Smoother over bumps and trails
- 21-Speed Gears – Easy shifting on any terrain
- Dual Disc Brakes – Reliable stops, rain or shine
- All-Terrain Tires – Grip for dirt, gravel, or street
Built to handle rough terrain, boost confidence, and make every ride exciting.
Skyline isn’t just cool—it’s backed by real support and worry-free protection:
- 1+ Year Warranty on Frame and other Normal Parts
- Free, secure, fast shipping with tracking
- 45-Day Easy Returns
Our job doesn’t end at delivery. We’re here to keep your young rider thrilled and safe every time they ride.
Not sure which bike is right for you?
FAQs
What size Glerc Skyline mountain bike should I choose?
Choose by the rider’s height and ability to control the bike, not age alone. The 20-inch Skyline is designed for riders approximately 45–55 inches tall, while the 24-inch version fits riders around 53–66 inches tall. Riders near the overlapping range should compare the fit with other 20 inch bike and 24 inch bike options before ordering.
What does 21 speed mean on the Skyline MTB?
A 21 speed MTB provides multiple gear combinations for starting, climbing, riding on level ground, and maintaining speed. Lower gears make hills easier to pedal, while higher gears suit faster riding on flatter surfaces. Families can compare its drivetrain and riding features with other Glerc mountain bikes.
Is the Skyline a mountain bike with disc brakes?
Yes. The Skyline is a mountain bike with disc brakes on both the front and rear wheels. Before the first ride, an adult should make sure both brakes engage correctly, the rotors are aligned, and the rider can comfortably reach and operate both brake levers.
Does the Skyline have front or full suspension?
The Skyline has a front suspension fork but no rear suspension. This hardtail-style setup helps reduce the impact of smaller bumps while retaining a relatively straightforward design. Riders specifically comparing this type of setup can explore Glerc’s hardtail mountain bike collection.
Can the Skyline be ridden on streets and trails?
Yes. Its gears, front suspension, disc brakes, and treaded tires make it suitable for neighborhood streets, paved paths, gravel, and beginner-friendly trails. It is not intended for large jumps, aggressive downhill riding, or highly technical terrain, so the route should match the rider’s experience.
Is the Skyline a good first geared mountain bike?
Yes, the Skyline can be a suitable first kids mountain bike for a rider who already balances and brakes independently. Beginners should practice shifting and braking on a flat, traffic-free surface before riding on hills or trails. Teach the rider to shift while pedaling smoothly rather than applying heavy pressure to the pedals.
Can training wheels be added to the Skyline?
Training wheels are not listed as included with either Skyline size, and this geared mountain bike is intended for riders who can balance independently. Disc brakes, multiple gears, and the rear derailleur can also limit compatibility with universal training wheels. Contact Glerc before installing an aftermarket set to confirm that it will not interfere with the drivetrain, brakes, or frame.
