Nitron ride height adjustment

Just fitted some Nitrons but didn’t adjust the fronts before fitting.

Now finding it difficult to adjust while on the car, very stiff turning the collar to try and raise the ride height as car is sitting too low.

Any ideas folks?

Take the weight off the suspension (Jack the car not the suspension) so it droops down (if you have not tried that already). I found a Tommy bar was easier than the Nitron tool.