The wheels are too new and cannot slide. You have to scrub off the oily surface on the wheels first. is to make the wheels old So you can slide. If the wheels are new, they will stick to the ground.
@@Kis15 Thanks for your advise. I ride on Oxelo MF500. The wheels have worn off. These are 80mm by the way. I wonder if it is easier to slide on bigger wheels like the oke you use.. hmmmm..