Just a tip If you are changing the the bearings on a SX1 the rear pivots have 2 bearings each side so there is 2 that go in from the inside and 2 from the outside with solid space in the middle I only found this out while removing all the frame bearings ready for powder coating. I manage to bend the end of a screwdriver ground the end to the shape needed then tapped them out with a small hammer. All the other bearings are single bearings I also got the numbers off the bearings and then ordered of Amazon at a greatly reduced price. I hope this helps