Thanks for the report, and your compliment about the mod! I thought I'd already covered my bases by adding the monowheel to the list of ignored prototypes, but apparently that's not enough for preventing the recipe change. However, I already ignore modded prototypes, so it should be an easy fix.
Would you mind adding the following to the file prototypes/3-add-circuits-to-vehicle-recipes.lua, after line 90?
if mods["IndustrialRevolution3"] then
table.insert(ignore_recipe_patterns, "monowheel")
end
This would hard-code the exemption. In case you have other mods that provide vehicles where you think the recipe shouldn't be changed, you can also tell the authors of those mods to add the line
GCKI_ignore = true,
to their recipe definition.