I would think the 16x18 would be too small for the Tokico calipers. I had the 19x18 on my track bike with them and it worked well, but you will never know until you try it.
Green '08 ZRX1200 Road bike Green 2012 ZX10 Track/race bike Green '89 H1 ZXR750 race bike '89 RMX250 motard race bike 2015 YZ450 2017 KTM EXC300