right my piaggio nrg is: really hard to push but somthimes its easy,, what can it be?? may it be the bearings?? cheers
if it was the bearing youd definetley hear a noise while riding it , most likeley its one of your brakes rubbing
If its disk brake, then bleed the fluid and top op. sometimes air bubbles build up and occasinally they stick abit, if its drum brak then check one of the springs hasnt snapped etc...general maintainance. If its non of the above its most likely clutch related
stick the scooter on the centre stand, or stick something under the scooter to raise the back wheel off the ground.... then turn the back wheel by hand, if it feels stiff....you can unbolt the back caliper and check again to eliminate binding brakes from the equation