reduction gear box repair kitThis kit will help you to solve a common problem with the Kona Niro reduction gear box. As practice shows, original bearings can fail even after 15,000 km. This kit consists of SKF bearings which are much more durable than the factory bearings. Now you can replace the damaged bearings in the reduction gear box instead of having to replace the whole box as before. The kit includes: Taper bearings 2pcs. (SKF) Ball bearings 4 pcs. (SKF) Oil seals 3pcs.