Very few Terratrikes have been sold in Europe and UK .
If you are attempting to gain an insight about potential issues and frame failures .
Pop on "Bentrider online " based in the USA and carry out a search on the subject .
If your friend believes it might be a warranty issue contact the makers for advice . But note most makers expect your first port of call is the supplying dealer. The other factor when you purchase from the USA or Far East is the phrase "return to base ".
If it was purchased pre owned or used or second hand any warranty is not transferable . Our well known UK based ICE trikes of Falmouth have the same policy .