RacingBrick - After the first crawler upgrade of the LEGO Technic 42099 4X4 X-treme Off-Roader set here's the next level - by replacing the other gear sets the vehicle becomes a real
![A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick](https://s3-us-west-2.amazonaws.com/media.brothers-brick.com/2019/07/LEGO-Technic-42099-4x4-X-Treme-Off-Roader-Review-Title-Picture-1.png)
A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick
![Amazon.com: LEGO Technic 4x4 X-treme Off-Roader 42099 Building Kit, New 2019 (958 Pieces) : Toys & Games Amazon.com: LEGO Technic 4x4 X-treme Off-Roader 42099 Building Kit, New 2019 (958 Pieces) : Toys & Games](https://m.media-amazon.com/images/I/81tGi+hqb4L._AC_UF894,1000_QL80_.jpg)
Amazon.com: LEGO Technic 4x4 X-treme Off-Roader 42099 Building Kit, New 2019 (958 Pieces) : Toys & Games
![A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick](https://i.ytimg.com/vi/2xVJnODxX8E/maxresdefault.jpg)
A little dirt never hurt: LEGO Technic 42099 4x4 X-treme Off-Roader [Review] - The Brothers Brick | The Brothers Brick
![LEGO 42099 vs LEGO 42070 | Better Crawler | Technic 42099 Comparison video | Offroader 42099 Test - YouTube LEGO 42099 vs LEGO 42070 | Better Crawler | Technic 42099 Comparison video | Offroader 42099 Test - YouTube](https://i.ytimg.com/vi/83hjZNAjd3Y/maxresdefault.jpg)