Doesn't look like the wax build up I get on mine.
If it is wax boiling water on the drivetrain components will get it off - maybe need a couple of tries.
On the wheels I'd try putting a paper towel on top and hitting it with a blow dryer/heat gun til it absorbs into the paper.
You'll want a cauldron, you pretty much have to immerse stuff in boiling water to get wax to melt off, because the attachment surface has to reach the 70°-80°C melting point.
Doesn't look like the wax build up I get on mine.
If it is wax boiling water on the drivetrain components will get it off - maybe need a couple of tries.
On the wheels I'd try putting a paper towel on top and hitting it with a blow dryer/heat gun til it absorbs into the paper.