Rim locks were installed as standard equipment on the H1, H2 and Z1 Kawasakis.They are a pain. Actually, they use 2 of them on the rear wheel only - never on the front. I have a CB750 that makes a lot more horsepower than either of the H2's or Z1's and my tire is not slipping on the rim.
I think if you were to run low tire pressure for dragstrip use, rimlocks would be good to have. Otherwise, don't worry about not having them - In this photo, you'll see the valve stem at 12 o'clock and the 2 opposing rim locks at 4:30 amd 10:30.
Gordon