Upgrade to K2 ILQ-9 bearings for better performance. ILQ 9 bearings feature tighter tolerances than the ILQ-7 bearings and will provide miles upon miles of trouble-free use.

What's the difference between these and the K2 ILQ-9 Pro bearings? Whilst both use 6 ball bearings and a self-lubricating nylon retainer for less friction, the ILQ-9 Classic Plus bearings do not use SCRS (S-Channel Rubber Shields).