Your average aqueous degreasers available at Home Depot are weak sauce.
This is what we use in the machine shop: https://www.mscdirect.com/product/details/40282535 (Trim Clean 2030).
I don’t know why it says “Solvent-Based”, because it is not. It’s water based and we mix it at 5-10% in ultrasonic and industrial parts washers.
More expensive than Simple Green, but a gallon of this stuff will last years for bike parts. It’s a lot friendlier than solvents.