sorry about 3X being the largest size.
Piano, if you want the file so your contact can use it to print the shirt, let me know and I will email it to you. I only ask you don't mass produce too much...
I am working on a design where the word Rocket III and 2300CC are colored in with the Great Britain flag... Obviously I cannot use Triumph logos and such, but if I can get it to work, it might be kinda cool. It would give it more of the Triumph feel without using their logo.