Seatbelt strap thingies
 

Anybody know about fixing or replacing these?
I've got a set of seats and they're both broken, no quick and easy way to remove them that I can see.
Are they available new still?

Are you talking about the seat belt guides for the upper shoulders of the seats? If so, I believe they are still available through Ray at Malloy.

I looked into this and they were priced out of my range. It would have cost over $120 so I bought used r1 seats locally for $150. The seatbelt guide was the first thing I checked when looking at them.

Even if you get brand new replacements you will still need to remove the cover to install it. I had great success repairing it with some jb weld. Had to smooth it out and spray paint it afterwards to make it look stock. Only issue is there are small little circular clips that hold them in place, removing them can make them obsolete...

F104-88-6J7 02 . Looks cheap at 3520 yen for a single but I've never seen that price anywhere other than this fellow's site. Mine broke the same way as his strap.
http://dekiairoadster.web.fc2.com/r-1519.html (Owe this Japanese fellow for the great info)