TM caps were slightly different than normal MGC or marushin caps in that they were more flexible than the other caps, they might of been made of a rubber compound rather than plastic not sure on that. Not sure if they were the same size as 7mm caps or slightly larger either, anyway TM caps are as far as i know not available over here. However MGC caps are and if you speak to johnnyv on this forum he can supply them, i am pretty certain they will fit its worth a try.