Ya, you remembered. The dealer said that they had to buy them in sets of six and would not do that without submitting it to Triumph for warranty approval. OK, my having my bike is more important than wasting a week of precious Maine ride time, so I asked "can I buy a set, and a plug" -- guess what, they were happy to oblige. Guess they do not understand what that will ultimately cost them! Yes, I ordered them so I can ride this weekend. Bad taste in my mouth though.