What does "Universal" mean:The term Universal is used in reference to the peg design on our pulleys. This universal design allows you to use our pulleys with multiple different wheel types, including Kegel, ABEC, and ABEC Clone (Cloud Wheels) cored wheels.
Note: If you purchase motor covers, they will ship separately in 4 weeks.
We recommend using these pulleys in combination with any wheel size between 100-120mm.
More information about our pulleys: On the right side of the picture shown below, 3 different wheel cores are displayed. On the top is the ABEC wheel core, in the middle is the kegel wheel core, and on the bottom is the ABEC clone (cloud wheel) wheel core. As stated above, our pulley will work with all three of these different wheel cores!