Don't worry, I'll have cigaretts on hand in Eureka Springs. Marlboro Reds. Isn't BP and Valero cousins?......oops. That's an other thread, Sorry.
Why would Triumph insist on a unique rear wheel?? Simple. It limits the consumers options and causes you to deal with pre-selected manufacturers. Just like the Mobil 4TRacing or whatever that stuff is. Only available at a Triumph Dealer. How convenient.
I think i'm gonna start running Shell 15-40 Rotella in the R3. It meets the JASO-MA standard (even though it's not marked as such on the jug). JASO-MA (Japanese Automotive Standards Organization-Motorcycle Applicable). Now that you know what it stands for, you can go a dazzle the sales guy or gal at the bike shop.
You know that old saying......'If you can't dazzle 'em with brilliance, baffle 'em with bull****'