It's gotta be good for your bike, 20 million baby bums can't be wrong. Maybe it's even better for the frame and other parts. I sprayed just about the whole of my oldest brick with wd40. I think it's an improvement, it definitely is an improvement in looks. Even if it's not an improvement, if it feels like an improvement to you, that's important too. I'll have to give my main bike the old wd40 too, it needs it most.