Rules are the same as listed on speedrun.com/distance.
Current Patch No Wheelieboosting is the assumed default "ruleset" for races. Any Patch and/or Wheelieboosting races are still allowed, however, just as long as the race info field specifies it.
Within the No Wheelieboosting ruleset, a few accidental wheelieboosts here and there will not count as disqualifiaction worthy on its own, but may be judged on a case by case basis. Clear attempts to spam wheelieboosting to gain speed will however result in a DQ.
Streaming is currently not required, but appreciated.