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LEGO Technic 4x4 X treme Off Roader 42099 Building Kit (958 Pieces)

4.8 4.8 out of 5 stars 837 ratings

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  • LEGO builders learn advanced elements of engineering while improving creative problem-solving skills as they construct and play with this amazing app-controlled LEGO Technic 4x4 X-treme Off-Roader.
  • This 4x4 app-controlled truck is powered by an advanced Smart Hub with 3 motors and operated via the LEGO TECHNIC CONTROL+ app, which delivers super-precise movement and functionality for a highly immersive play experience.
  • Kids can choose from 3 alternative screens on their smart device to drive and traverse obstacles at the touch of a fingertip, play sound effects, complete fun challenges and get real-time feedback, such as a speed and tilt log.
  • Ideal as a Christmas or birthday gift for all aged 11+, this sturdy 958-piece 4x4 app-controlled truck comes with high-rise independent suspension, large wheels with chunky tires and a fresh color scheme with cool sticker detailing.
  • The 42099 LEGO Technic 4x4 X-treme Off-Roader measures over 7” (19cm) high, 12” (33cm) long and 8” (22cm) wide and can be combined with all other original LEGO sets and LEGO bricks for creative play.

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LEGO Technic 4x4 X treme Off Roader 42099 Building Kit (958 Pieces)


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Product Description

Are you ready to take your LEGO play experience to another level? The LEGO Technic 4x4 X-treme Off-Roader is powered by an advanced Smart Hub with 3 motors and controlled via the intuitive LEGO TECHNIC CONTROL+ app. The sophisticated app technology enables super-precise movement and functionality, while delivering endless authentic digital play combinations with authentic sound effects. Users can choose from different control screens to drive forward, reverse, steer, accelerate, brake and traverse obstacles. You can also get real-time feedback, such as a speed and tilt log or test out your skills in the app’s challenges and achievement section. This sturdy 4x4 app-controlled truck comes with high-rise independent suspension, large wheels with chunky tires and a fresh color scheme with intricate sticker detailing. Its complex gear mechanisms and technologies introduce LEGO builders to advanced elements of engineering, while improving reaction times, cognitive thinking and creative problem-solving skills.

Important information

Safety Information

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From the manufacturer

42099

Hi-tech motorized model

Cool 4x4 Off-Roader, powered by an advanced smart hub with 3 motors and operated via the intuitive LEGO TECHNIC CONTROL+ app.

LEGO Technic 4x4 X-treme Off-Roader

Super-cool design and performance

Drive in all directions, traverse obstacles and get real-time feedback, such as speed and tilt—all via a smart device.

LEGO Technic 4x4 X-treme Off-Roader

LEGO Technic 4x4 X-treme Off-Roader

LEGO Technic 4x4 X-treme Off-Roader

LEGO Technic 4x4 X-treme Off-Roader

Awesome design

Rugged truck with huge wheels and chunky tires.

An educational play experience

LEGO builders learn advanced elements of engineering.

Tough suspension

Rugged high-rise independent suspension for rough terrain.

LEGO Technic 4x4 X-treme Off-Roader

LEGO Technic 4x4 X-treme Off-Roader

LEGO Technic 4x4 X-treme Off-Roader

Challenges and achievements

Complete fun challenges to win reward badges.

Super-precise control

Operated via the free LEGO TECHNIC CONTROL+ app.

Multifunction control

Perform amazing maneuvers with the touch of a fingertip.

LEGO Technic 4x4 X-treme Off-Roader

A highly rewarding building experience

LEGO builders are introduced to advanced elements of engineering as they construct this super-realistic LEGO Technic model.

What's in the box

  • LEGO Building Elements
  • Looking for specific info?

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    837 global ratings

    Customers say

    Customers like the quality, ease of construction, controls and appearance of the toy building block. For example, they mention it's fun, challenging and has lots of fun details. That said, some complain about the performance.

    AI-generated from the text of customer reviews

    23 customers mention23 positive0 negative

    Customers are satisfied with the quality of the toy building block. They mention it's an awesome build, a good product, and a very solid set. Some say that it'll be a great purchase and the best Lego technic set they have ever built.

    "...Good product, well done!" Read more

    "...He also thought the app was great! Legos are the best toy ever developed, whether my baby grandson playing with the large chunky Duplos, or my 50+..." Read more

    "...The Bluetooth controls are nice. The vehicle seems pretty tough...." Read more

    "...It has four wheel suspensions and is very sterdy. It is really cool because it is a rc truck...." Read more

    20 customers mention20 positive0 negative

    Customers find the toy building block easy to assemble. They mention that it has lots of fun details, and is fun to build. Some say that the instructions are easy to read. Overall, customers are satisfied with the ease of construction and the fun details of the tow truck.

    "...It was a fairly challenging, but not impossible lego set to assemble. He enjoyed the challenge and was proud when he completed it...." Read more

    "...Fun build which took me about 1.5 days to build. Instructions are clear and the packaging makes it even easier to follow. Enjoy your build!" Read more

    "...And this set did not disappoint. He commented that the set was easy to drive, solidly built, and had lots of fun details...." Read more

    "It was easy to put together. The Bluetooth controls are nice. The vehicle seems pretty tough...." Read more

    8 customers mention8 positive0 negative

    Customers like the controls of the toy building block. For example, they mention the app-based control is ok, the Bluetooth controls are nice, and the smart phone remote control steering has good response.

    "...This thing is cool its controlled via Bluetooth and works great.Its a crawler so that means its slow...." Read more

    "...He also thought the app was great!..." Read more

    "It was easy to put together. The Bluetooth controls are nice. The vehicle seems pretty tough...." Read more

    "...Still works fine. I like the app for the remote control. Motors are good they just need more tuorqe for such a large off road vehicle...." Read more

    6 customers mention6 positive0 negative

    Customers are satisfied with the appearance of the toy building block. They mention that the design is well done, cool, and fun to play with. Some say that the shocks are well designed and can run over obstacles and climb. Overall, most are happy with the product's appearance.

    "...has enjoyed hours of running it around the house and using the well designed shocks, can run over obstacles and climb different terrains he has made...." Read more

    "...its meant to go RC Off-roading.Very cool build like always from lego." Read more

    "In the end I was able to build the model, and the design is well done and fully functional...." Read more

    "This lego was a really cool build, but my son and I were disappointed when we fired it up and it is slllooowww...." Read more

    15 customers mention7 positive8 negative

    Customers are mixed about the performance of the toy building block. Some mention that it functions pretty well, while others say that it has poor performance. The motor is slow, and the vehicle doesn't move very fast. It also doesn'll function well in high grass. Some customers also complain that the vehicle when assembled seemed awfully slow.

    "...This thing is cool its controlled via Bluetooth and works great.Its a crawler so that means its slow...." Read more

    "...I have two complaints; First is the vehicle doesn’t move very fast and second I wish they had lights for these kits...." Read more

    "...I was able to build the model, and the design is well done and fully functional...." Read more

    "Awesome build! Cool functions! Poor performance..I thought the gearing had enough torque to overcome obstacles like piles of legos...." Read more

    A (Mostly) flawless product.
    4 Stars
    A (Mostly) flawless product.
    In the end I was able to build the model, and the design is well done and fully functional.However, there are several key points, both good and bad I should mention:I love the change lego has made on the control boxes, not needing to have a screwdriver to open the thing makes the utility of itas a toy MUCH more enjoyable.I cant really expect perfection in the field of functionality its generally impossible, being made from a universal building kit. mechanical drift will happen, steering can become off, creating a slight turn. While I am not expecting better quality, as it is at its best at the moment, it would be an interesting study for lego to do to improve on that factor.Last but not least, a sad note to mention, despite legos focus on quality, I DID get a defective part. In fact, the first part I pulled out has a semetrical cave-in defect in the pin holes on opposite corners of the box, as seen in the photo, its hard to see but its real. Those holes are essentially useless and I couldnt use it as directed, I had to swap it for another one from further down the instructions.So... while I do believe the product is worth it anyway, It deffinitely had its quirks and the buyer should keep itin mind when buying.
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    Top reviews from the United States

    Reviewed in the United States on February 1, 2021
    2 people found this helpful
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    Reviewed in the United States on September 17, 2020
    Reviewed in the United States on February 21, 2022
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    Reviewed in the United States on January 1, 2020
    7 people found this helpful
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    Reviewed in the United States on December 13, 2019
    2 people found this helpful
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    Reviewed in the United States on October 31, 2022
    Customer image
    4.0 out of 5 stars A (Mostly) flawless product.
    Reviewed in the United States on October 31, 2022
    In the end I was able to build the model, and the design is well done and fully functional.

    However, there are several key points, both good and bad I should mention:

    I love the change lego has made on the control boxes, not needing to have a screwdriver to open the thing makes the utility of itas a toy MUCH more enjoyable.

    I cant really expect perfection in the field of functionality its generally impossible, being made from a universal building kit. mechanical drift will happen, steering can become off, creating a slight turn. While I am not expecting better quality, as it is at its best at the moment, it would be an interesting study for lego to do to improve on that factor.

    Last but not least, a sad note to mention, despite legos focus on quality, I DID get a defective part. In fact, the first part I pulled out has a semetrical cave-in defect in the pin holes on opposite corners of the box, as seen in the photo, its hard to see but its real. Those holes are essentially useless and I couldnt use it as directed, I had to swap it for another one from further down the instructions.

    So... while I do believe the product is worth it anyway, It deffinitely had its quirks and the buyer should keep itin mind when buying.
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    Reviewed in the United States on June 25, 2020
    52 people found this helpful
    Report
    Reviewed in the United States on June 22, 2020
    4 people found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Jo
    5.0 out of 5 stars Very fun to do... but slow
    Reviewed in Canada on May 31, 2021
    Alberto S
    5.0 out of 5 stars Muy buen armado y funciones.
    Reviewed in Mexico on May 28, 2021
    Customer image
    Alberto S
    5.0 out of 5 stars Muy buen armado y funciones.
    Reviewed in Mexico on May 28, 2021
    Es el primero LEGO Technic que armo, por lo que su construcción tomó más de lo que había visto en algunas reseñas. Lo adquirí en oferta a un muy buen precio tomando en cuenta las funciones Control+ con las que cuenta que son 3 motores y el Hub de última generación. La aplicación para controlarlo es muy fácil de usar e intuitiva, además de tener un modo guiado para ir cumpliendo desafíos a modo de aprender a utilizarlo. También muestra en pantalla el nivel de inclinación en ambos ejes y para esto, llega un punto donde si está muy inclinado o le falta potencia, no avanza ya y aparece un aviso en pantalla. En general me parece un muy buen set para uso o colección.
    Images in this review
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    Customer imageCustomer image
    One person found this helpful
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    Michel Coatrieux
    5.0 out of 5 stars Attention, modèle difficile à construire pour quelqu'un peu familier de LEGO
    Reviewed in France on August 28, 2022
    Paul
    5.0 out of 5 stars Excelente!!
    Reviewed in Mexico on January 31, 2021
    LuLu
    5.0 out of 5 stars This is a very fun set to build.
    Reviewed in Canada on January 28, 2021