If you have the time to wait Bikebandit.com has every size available at less than $6.00 per shim. If you don't have the time to wait then any Yamaha dealer should have the shims. Although the thickness will not be the same as Triumph. I needed a 2.825mm and the closest the Yamaha dealer had was a 2.820mm.

Tom

Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety. Benjamin Franklin, US author, diplomat, inventor, physicist, politician, & printer (1706 - 1790)