The fastest bike in Roblox Supermoto Testing appears to be the one players describe as the game’s top-speed bike, with a TikTok result specifically calling out a bike reaching 210 km/h as the fastest engine in the game. A separate recent TikTok discovery page also points to community testing around the “fastest bike in supermoto testing,” which supports that this is a live meta topic in the game.

What that means

  • If you want the highest top speed , the community discussion currently centers on that 210 km/h bike.
  • If you want the best overall ride , some players may still prefer a bike with slightly lower top speed but better handling, since speed alone does not always win races.
  • These speed claims can change after updates, so the fastest bike today may not stay fastest for long.

Practical pick

For a quick answer: go with the bike players are testing at 210 km/h in Supermoto Testing, since that is the clearest “fastest” claim I found in current public discussion.

Community speed rankings in Roblox racing games often shift after patches, balance tweaks, or new unlocks.

TL;DR: The current public discussion points to a Supermoto Testing bike reaching 210 km/h as the fastest reported option.