The throttle, as Dave said, takes the bike up to a few mph. If, however, you were cycling along in power level 1, 2, 3 or 4 and just wanted a boost to help on a hill or junction, if you press the throttle whilst pedalling, you get full power until you let it go.Forgot to add, still not sure what the throttle on my bike actually does - certainly doesnt work like a full throttle on my other e-bike
Where did you get the full length mudguards? They look like the things I need for winter riding.