20" Kent Kobra Mountain Bicycle, Fits Rider 4'2" - 5', Black/Pink, Child, Unisex
20" Kent Kobra Mountain Bicycle, Fits Rider 4'2" - 5', Black/Pink, Child, Unisex
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20" Kent Kobra Mountain Bicycle, Fits Rider 4'2" - 5', Black/Pink, Child, Unisex

4.4 stars out of 1034 reviews
(4.4)|
1,034 ratings

Key item features

  • Mountain Bike: Designed as a mountain bike, perfect for off-road adventures.
  • 20" Wheels: Features 20" wheels suitable for children.
  • Child-Friendly: Ideal for children with a height range of 4'2" to 5'.
  • Unisex Design: Suitable for both boys and girls.
  • Steel Frame: Durable steel frame ensures longevity and stability.
  • 6-Speed Drivetrain: Equipped with a 6-speed drivetrain and twist shifters for easy gear changes.
  • Knobby Tires: Lugged knobby tires provide excellent traction on various terrains.
  • Linear-Pull Brakes: Front and rear linear-pull hand brakes offer reliable stopping power.
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Current price is $128.00
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4.4 out of 5 stars
stars1,034 ratings710 reviews
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Showing 1-3 of 710 reviews

Apr 11, 2025
WalmartCustomer
5 out of 5 stars review

Verified Purchase

This bike is exactly what I was looking for. My daughter loves the color scheme and it is easy for her to learn how to ride a mountain bike with still being similar design to a beginner bike.

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Helpful?90110170-0b0d-11f1-8e30-63e7131886fb666581307
Feb 3, 2026
Kevin
4 out of 5 stars review

Verified Purchase

It's a great bike for it's price point and intended consumer. It has a bit of a BMX/mountain bike design to it. Newer riders will feel more comfortable sitting a little more upright than that of a typical mountain bike. It's got a cool little color scheme, and a very simple build. Before I gave it to my daughter, I took it apart to make sure it was put together, greased, and adjusted correctly. All I had to do was make a few adjustments. Everything had plenty of grease, and everything was tight. I only had to tweak the shifter and the rear rim was slightly out, no problem. It balances easy at low speeds like a BMX bike would, which makes it easy to ride, but has a suspension fork and a 1x6 drivetrain similar to what you'd expect on bigger mountain bikes. The only negatives is I wish the manufacturers would get away from the twist shifters and go to thumb/trigger shifters. Twist shifters can be difficult to turn for little girls, and accidental shifts are easy. So I ordered a thumb shifter for it, much better. The other is the grar ratio was too tall for much mountain bike riding, especially for a child. It came with a 40 tooth front chainring. Wayyyyyy to tall for a mountain bike, even with 20 inch wheels. I replaced it with a 30 tooth sprocket. It uses BMX style crank, so I had to switch to a BMX style 1/8 wide chain to accommodate it. This was an experiment, but it worked fine thanks to the accuracy of the trigger shifter. I also wish it had a larger head tube to accommodate a 1-1/8 steerer tube fork, but the chances of needing to upgrade the fork are so slim seeing most riders will want a more larger bike by the time they're ready for good front suspension.

Helpful?90110170-0b0d-11f1-8e30-63e7131886fb666581307
Jul 15, 2025
Vishal
4 out of 5 stars review

Verified Purchase

Overall a good bike.

Overall bike is good. Installation instructions could have been better. Ride is smooth. Seat adjustment works fine. Gear mechanism could be a little smoother.

Helpful?90110170-0b0d-11f1-8e30-63e7131886fb666581307