The Wizard Advanced Frames is designed to use with Wizard Base High boot. It suits experienced skaters best, looking to take their skating to new places. Transitioning to this frame will be easier if you have used another 5-wheel frame in the past. Its designed with a combination of large outer wheels and small inner wheels in a Progressive Rocker. The outer wheels extend beyond and above the boot’s base to provide an extended range of balance, while the 3 smaller wheels under the foot help maintain a low centre of gravity (more control), and shorter effective contact (more manoeuverability).If you would like to use this frame with a different boot but you're not sure what size would be best (as the front and back wheel need to extend beyond and above the boot's base) please call or email [email protected] for our recommendation. ADV 100/76 Progressive Rocker Geometry Designed for 3 x 76mm (inner) and 2 x 100mm (outer) wheels 77mm effective contact 332mm wheel base ADV 100/80 Progressive Rocker Geometry Designed for 3 x 80mm (inner) and 2 x 100mm (outer) wheels 81mm effective contact 344mm wheel base ADV 100/84 Progressive Rocker Geometry Designed for 3 x 84mm (inner) and 2 x 100mm (outer) wheels 85mm effective contact 356mm wheel base - Made in Canada- UFS mounting- Includes 10 steel frame axles- Includes 4 UFS mounting bolts