The SM-RT99 brake disc ensures consistent braking behavior in all weather conditions and delivers outstanding braking performance even during aggressive driving. The ICE TECHNOLOGIES FREEZA brake discs ensure that heat dissipation ensures that braking performance is not impaired even on long descents. With the SHIMANO CENTER LOCK fastening system, the brake discs can be mounted quickly and easily thanks to the locking ring design. You can return old batteries that we have or have had in our range as new batteries free of charge to our shipping warehouse (shipping address). The symbols shown on the batteries have the following meaning: The symbol of the crossed out garbage can means that the battery must not be disposed of with household waste. Pb = battery contains more than 0.004 perce.