The "best" download for PC is actually a community-driven mod called Sonic Riders Regravitified

The easiest way to download Sonic Riders: Zero Gravity on PC is through Steam. The game is available on Steam, and you can purchase it directly:

The BIOS is a file copied from a legitimate, user-owned PlayStation 2 console. It is required for the emulator to function. Search your console for the correct BIOS files for your region (USA, Europe, or Japan). Place them into a designated "bios" folder on your PC. In the PCSX2 settings, navigate to the BIOS configuration and select the folder you created.

The best version of Sonic Riders: Zero Gravity on PC is undoubtedly the Steam version. Here's why:

If you encounter slowdowns while using Dolphin, the first step is to turn the Internal Resolution down to 1x and set Anti-Aliasing (AA) to "None". This is the most reliable way to determine if your CPU is causing a bottleneck. Users have reported full-speed gameplay on CPUs as old as the Intel Core i5 760 at 3.2GHz, suggesting that the game is not extremely demanding.

Pre-configured controller layouts matching modern layout standards. Built-in HD UI and track texture replacements. Custom balance patches for competitive online play. Built-in matchmaking codes for Netplay.

This sequel refined the formula of the original Sonic Riders by introducing a creative gravity-manipulation mechanic. The narrative follows Team Sonic as they discover a mysterious bracelet that grants gravity-defying powers to defeat an army of robots. The racing itself is a chaotic blend of futuristic speed and acrobatic skill. Gameplay innovations include:

Texture Filtering: 16x Anisotropic for crisp ground textures.

The legal way to obtain the game is by ripping it from your own Nintendo Wii disc. You will need a specialized Wii console to do this, creating a .iso or .wbfs file.

Because the game is no longer in print, you have two legal options:

Because SEGA never released an official PC port, achieving the requires using emulation software. This guide will walk you through downloading, setting up, and optimizing the definitive version of the game on your computer. The Best Way to Play on PC: Dolphin Emulator

Once the game is loaded in Dolphin, you need to adjust the settings. Based on community testing, the following configuration yields the best results: