Mechanical Aid in Races

I’ve just finished watching the IM Wisconsin race from 2008 and noticed that Jason Shortis had trouble with his rear wheel (I think he flatted) and they showed him getting a new wheel during the race. I always thought that you couldn’t get any outside assistance esp. stuff like brand new wheels. Can anyone confirm? perhaps it is a “pro” rule. Thanks

It is allowed to receive help from the OFFICIAL support cars. (There’s not many of them…)
It is allowed to receive help from other competitors.

It is not allowed to receive help from any other.

It is allowed to receive help from the OFFICIAL support cars. (There’s not many of them…)
It is allowed to receive help from other competitors.

I believe those are the “rules” as I understand them. I think their is a grey area that is sometimes entered into as well.

lol… sounds like “The Silence of the Lambs”
It places the lotion in the basket…