PC version Fans have made a PC version. Some are still early, so read the project page first.
Fans took Jet Moto 2 apart and rebuilt it so it runs natively on a computer, often with widescreen, higher frame rates and mods. Here is the project we know about:
Jet Moto 2 Recompiled - native PC build of Jet Moto 2: Championship Edition (PS1, SCUS-94167) via RecompOne static recompilation. Bring your own disc.