Detailed specifications of the models from the review are provided for visual comparison in the summary table of MTB bikes for teenagers. You can select a bike yourself in the appropriate section of the catalog.

21-speed transmission, front shock absorption, mechanical disc brakes, high-strength steel frame, fenders on wheels.
Heavy.

The CROSS brand belongs to the Kharkov bicycle brand Titan. An excellent choice for teenagers is the Fast 24 2023 mountain model.

With a 12” steel frame size, the bike is tailored for riders with a height of 126 to 155 cm. The steel “formula” of the frame gives the bike excellent strength, but makes the model quite heavy. For fragile teenagers, mountain bikes based on an aluminum frame are better suited.

The bike has a 21-speed transmission made from basic Shimano Tourney components, assembled according to the scheme “7 stars of the rear cassette on a freewheel hub + 3 stars of the front system.” An extensive range of speeds allows the rider to quickly adapt to changing terrain conditions and sensitively control the pedaling force depending on the specific riding conditions.

The 2023 CROSS Fast 24 rides on 24-inch wheels with large tires that absorb vibrations off-road. In addition, the bike was equipped with a front spring-elastomer fork. The braking of the bicycle is carried out by mechanical disc brakes. You can immediately ride the "miner" even in rainy weather - in the factory configuration, the model comes with wings on wheels, which often have to be purchased separately.

21-speed transmission, front shock absorption, mechanical disc brakes.
There are no significant disadvantages.

For young cyclists with a height of 120 to 140 cm, the portfolio of the Atlantic cycling brand presents an interesting model Fusion NX 24 2022. This is an inexpensive “miner” with a high-quality transmission, reliable brakes and front shock absorption.

The bike has a semi-open frame geometry with a lowered top tube for ease of getting on and off of the rider. The bike's 24-inch wheels on double aluminum rims have excellent maneuverability and good roll. And a 21-speed transmission made from Shimano Tourney amateur-grade components helps to flexibly dose the pedaling force depending on the complexity of the terrain.

At the front, the Atlantic Fusion NX 24 2022 design features a V-Class Delta steel suspension fork with a range of up to 80 mm. There are no adjustments in the shock absorption system, but in general it helps to effectively smooth out uneven road surfaces under the bike’s wheels.

Quick deceleration and lightning-fast stopping of the bike are ensured by reliable Logan mechanical disc brakes with 160 mm rotors on both wheels. The standard mountain bike is equipped with a chain guard, a folding parking step on the left side and reflectors on wheels. You are supposed to purchase and install other bicycle accessories yourself; fortunately, the model has all the necessary fastenings for their installation.

21-speed transmission, front shock absorption, mechanical disc brakes, high-strength steel frame.
Heavy, simple body kit.

The Discovery Rider AM DD 24 2022 mountain hardtail is designed for teenage boys and girls. The bicycle can withstand a load of up to 55 kg, and riders with a height of approximately 130 to 150 cm will feel comfortable behind the wheel.

High-strength steel alloy is used as the material used to make the mountain bike frame. The front suspension fork is also made from steel, with a working reserve of up to 50 mm. The free travel of the fork is enough to smooth out small vibrations from small unevenness in the road surface. But the bike is definitely not suitable for extreme riding and jumping.

Thanks to the steel frame, the bicycle boasts the highest strength, but it weighs an order of magnitude heavier than its aluminum counterparts. The body kit for the “miner” was entry-level components from the Chinese brand Sunrun : a 7-star ratchet rear hub, a 3-star front system and trigger shifters on the steering wheel for shifting gears. In total, the young cyclist has 21 speeds at his disposal.

Responsible for stopping the mountain bike are Yinxing's fail-safe mechanical disc brakes. The model’s body kit is assembled entirely from Chinese components, but in terms of quality it’s hard to complain about them. The bike is also equipped with a parking stand and chain guard. Active teenagers of any gender will definitely like the Discovery Rider AM DD 24 2022 for riding around the city, forest paths and light rough terrain.

Comfortable fit, lightweight aluminum frame.
There are no significant disadvantages.

Good quality, reliability and affordable price are the three pillars on which the Kinetic Coyote 20 2022 teenage mountain bike model rests.

The bike is aimed at children of primary school age and short teenagers. Behind the wheel, a comfortable position is provided for riders with a height of approximately 115 to 135 cm. At the same time , the bike is placed on 20-inch wheels shod in 2.1” wide Kenda all-terrain tires. The model feels confident both on hard asphalt surfaces and on light off-road conditions.

The front wheel of a mountain bike is mounted on a rigid (non-shock absorbing) steel fork, while the overall frame of the bike is made of aluminum. The weight of the assembled model is 12.2 kg, making it easy for children to handle. The Kinetic Coyote 20 2022 transmission has 7 gears, and it is assembled from high-quality Shimano Tourney components.

The bicycle is equipped with only the essentials: the usual V-brake rim brakes on the front and rear wheels, a footrest for easy parking, and a guard on the pedal assembly to prevent chains from chewing on clothing. The model will definitely appeal to a child who prefers complete freedom of movement behind the wheel of a “two-wheeled horse.”

18-speed transmission, front shock absorption, high-strength steel frame.
There are no significant disadvantages.

A teenager's bicycle on a high-strength steel frame, Author Matrix 24 2023, is a comfortable solution with good performance for riding in a wide variety of conditions.

The model is easy to travel on both hard asphalt surfaces and conquer rough terrain. On bad roads , the front spring-elastomer fork with a travel reserve of up to 40 mm comes into play. The shock absorption system helps compensate for minor road unevenness under the 24-inch mountain bike wheels.

The rider is offered a choice of 18 speeds, switchable via a “twister” on the right handle of the straight steering wheel. The model's transmission consists of Shimano Tourney amateur-grade components. It is harmoniously complemented by simple rim brakes from the famous Tektro brand. Although the bike’s body kit is basic, it was assembled entirely from high-quality components.

The bike doesn’t care about steep climbs, long descents or dirt paths. Despite the steel frame, the model turned out to be relatively light (13.5 kg in full “outfit”). Also on sale is a modification of the “miner” based on a lightweight aluminum frame - Author A-Matrix 24 2023.