The following products are still on their original order from a few years ago, and have not be reordered since. These are typically slow sellers, so it could be another year before we reorder.
276-3876 - High Strength Sprocket 6 Tooth (8-pack)
276-3878 - High Strength Sprocket 18 Tooth (4-pack)
276-3879 - High Strength Sprocket 24 Tooth (4-pack)
276-3880 - High Strength Sprocket 30 Tooth (4-pack)
276-1497 - 4" traction wheel
These following products have definitely been updated to HS bore:
276-2251 - HS 12t Gears
276-2252 - High Strength Sprocket & Chain Kit
276-1902 - 2.75" Omni-Directional Wheels
Finally, these following products are more than likely completely transitioned to HS Bore and in-stock. We’ll have to manually check stock to confirm.
276-2185 - 4" Omni-Directional Wheels
276-1447 - 4" mecanum
276-1496 - 2.75" traction wheel
@Brian_9605A: So it appears that if you’re looking to get HS compatible 18 tooth sprockets, you’ll need to purchase 276-2252.