Glerc 20" Mountain Bike For Beginner-Mars

$312.99 $249.99 Save 20%

Glerc 20" Mountain Bike For Beginner-Mars

$312.99 $249.99 Save 20%

  • car-icon Free Shipping | 2-8 Days Delivery
  • bicycle-icon 2 Bikes 10% OFF | 365 Days Warranty

45-Day Easy Returns
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45-Day Worry-Free Returns
Shop with confidence and enjoy hassle-free returns.
If there are any quality issues with the bike before assembly, you can return or exchange it for free within 45 days.
  • Free Shipping within the US
    Get your kids' bike delivered to your door at no extra cost!
  • 365-Day Warranty
    Enjoy peace of mind with our full year of coverage on every bike.
  • Expert Customer Support
    Chat online or call us for quick, reliable solutions to your questions.
Learn More

Compatible Accessories
What's In The Box

Our bikes come 85% pre-assembled for easy setup. Assembly tools and additional accessories are included. Click below to learn more.
Detailed Chart

Sizing Chart

Ensure your child’s bike is the perfect size for safe and fun rides. Use our easy chart to match their height and age to the ideal bike. Get expert tips on measuring for the best fit and enjoy a smoother ride!
 View Size Chart

Delivery
Processing Time

Most orders are shipped within 48 hours (most orders are shipped within 24 hours) after the payment is processed. Once your order has shipped, we will provide you with a tracking number that allows you to track your package. 

Shipping Time
  • 5-8 Days: CA, NE, AZ, OR, UT, WA, ID, NY, VT, MA, PA, NJ, DE, MD, VA
  • 5-8 Days (Normally): Other States

Note: The total time is the sum of the processing time and the shipping time. The shipping time is calculated using calendar days and should be used as a general guide. Shipping delays may be caused by natural disasters, inclement weather, war, public holidays, and factors outside our control.

More about on Shipping Policy

Top Features
  • Durable Hi-Ten Steel Frame
  • Disc Brakes
  • SHIMANO 6 Speeds Shifter
  • Quick-Release Front Wheel
  • Adjustable Seat
  • Bell & Reflectors
  • Kickstand
Description
  • 【STURDY FRAME】This all-terrain mountain bike uses carbon steel frame and internal buried brake cables, which can greatly improve ride safety.
  • 【Great Braking System】Disc brakes allow for more precise and controlled, are more effective than rim brakes, help to keep safer when riding at high speeds, down slopes and in wet conditions.
  • 【Wider Tires】 20 x 2.8 inch knobby mountain fat tires provide excellent stopping power and tons of traction in sand and snow. This kids bike with soft seat offers more comfort in riding. Kickstand is included.
  • 【Advanced Gear】 High-quality TY200D rear derailleur and handle shifters make gear changes smoother and easier. Fat tire bikes are more focused
    on simplicity and comfort.
  • 【Assembly & Size Guide】85% pre-assembled, tools included. If you have any questions about bikes, please do not hesitate to contact us. The 20-inch bike fits 42-56˝ tall kids for age 6-12.
Specifications
  • Bike Type: Mountain Bike
  • Weight: Refer to size chart
  • Frame: Carbon Steel
  • Stem: Aluminum , Quill
  • Brake Style: Internal Buried Brake Cables, Disc Brakes
  • Bicycle Gear Shifter Type: Trigger
  • Tire type: Wider Knobby Mountain Fat Tires
  • Handlebar: Steel , Height adjustable
  • Seat: Cubsala comfort, quick release
  • Brake lever: Aluminum
  • Wheelset: Aluminum
  • Number Of Speeds : 6

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The Mars Kids’ Mountain Bike by Glerc is built for young riders ready to climb, cruise, and explore. Perfect for:

  • Ages 7–15
  • Beginners looking to build control, balance, and confidence
  • Kids who want to hit the trails, ride the park, or cruise the neighborhood

From first rides to off-road adventures, Mars grows with your child’s skills—and inspires them to go further every time.

The Mars is made to handle growing skills and big ambitions. Features that power every ride:

  • Durable Hi-Ten Steel Frame – Tough and built to last
  • Powerful Disc Brakes – Reliable stopping power in all conditions
  • SHIMANO 6-Speed Shifter – Tackle hills and flat roads with ease
  • Quick-Release Front Wheel – Simple to store, move, or adjust

With comfort, control, and durability at its core, Mars is ready to grow with your young rider—mile after mile.

Every Mars ride starts with Glerc’s promise of quality, safety, and joy:

  • 1+ Year Warranty on Frame and other Normal Parts
  • Free, secure, fast shipping with tracking
  • 45-Day Easy Returns

From first unboxing to every adventure ahead, Glerc is here to support your young rider every mile of the way.

Adored by 1.5M+ Little Riders

Assembly Instructions

FAQs

How can I track my order?

To track your order, use the tracking number provided in your shipping confirmation email. You can enter it on our tracking page. https://www.glercbikes.com/pages/tracking

What size bike should I buy?

You can determine what size bike to choose based on your child’s height. You can decide after reading the children's bicycle size chart on our website.

What accessories are available for your bikes?

Visit our accessories page to view all available add-ons for your bike.

Customer Reviews

Based on 41 reviews
63%
(26)
10%
(4)
2%
(1)
5%
(2)
20%
(8)
R
Robert G.
Good quality

Amazing what they can ship to your door. In-store Walmart doesn’t seem to have anything but BMX bikes this size these days so we picked out this. Came mostly assembled In a relatively thin package. Brakes and lines all connected already. Just needed to assemble the pedals, wheels, and handle bars. Took all of 10 minutes.Bike is holding up well after a few months of regular use. Gears shift nicely. No brake squeal. Looks pretty nice. Structurally sound. Would buy again.

D
DeAnn K.
Ages and height specs are not accurate for a good fit.

Size specs indicate this 24-inch bike fits children 54-70 inches tall or 8-14 years old.My son is 11 years old and 60 tall.  This bike is way too small for him.  We took the bike in to see if we could get the handle bars adjusted, but even that, and the seat at max height this bike is useless for him.  Unfortunately, we are outside the window to return the bike.  Huge mistake believing the specs.

B
Brandon
Great color

Why did you pick this product vs others?:This bike looks so sharpBike quality:Nice

J
Jessica
Great quality

Great bike for the transition into using gears. It seems to be really good quality especially when you have a kid who likes to ride hard and the bike looks just as pictured. Highly recommend and would purchase again when our next kid makes the transition to a bigger bike. It is pricey, but it seems like this bike will last a long time.

R
Rick S.
Damaged

Receive item damaged

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