Roller Blade Wheel Replacement Notes

Futura Rollerblade wheel replacement notes:
* 70mm wheel diameter
* 24mm wheel thickness (vs. 20mm for youth)
* standard size 608 bearing hub (OD=0.860")
* 8mm wide axles
* ABEC (Annual Bearing Engineering Community). ABEC 9 is very smooth.
* 78A durameter rubber is good for indoor
* >80A durameter rubber wheel is good for outdoors <