: Double-click on ride_4.part1.rar . Most extraction software like WinRAR or 7-Zip will automatically recognize the other parts (including part 4) and treat them as one single archive.
: Ensure you have every numbered part of the archive in one directory. ride_4.part4.rar
To access the content within this part, you must have (e.g., part1, part2, part3, etc.) in the same folder. : Double-click on ride_4