1. Check stability
Ensure the bike is sitting flat on the floor, try a different floor position or adjust the screw feet if required.
2. Tighten all fixings
Double check all fixings on your bike from top to bottom, ensure they are snug.
Loose fixings on pedals, seats and handlebars can cause ‘clicking’ and knocking noises.
3. Adjust flywheel nuts
The nuts on the wheel need a simple adjustment. Please see this video for correction instructions https://youtu.be/z_X51SFr988 . Caution - do not over tighten - follow the tightening instructions carefully.