This service kit comes with a bearing protection ring BDU2xx, specifically designed to safeguard the L2 and L3 bearings on the drive unit. The L2 setup includes 3 felt rings and 3 circlips, while the L3 has 3 bearing rings. Also included is a 20g tube of grease for smooth operation.

Using this Bosch E - bike Motor Bearing Service Kit is straightforward. First, make sure your e - bike is turned off and unplugged. Locate the drive unit where the L2 and L3 bearings are. Carefully install the felt rings and circlips for the L2 bearing as per the positions they are meant to be in. Then, fit the bearing rings for the L3 bearing. After that, apply a bit of the 20g tube of grease to the bearings to reduce friction. As for maintenance, check the bearings regularly for any signs of wear. If the felt rings look dirty, clean or replace them. Keep the kit in a dry place when not in use to prevent the grease from drying out or the parts from rusting.