I have a 1981 RM 125 and I'm in the process of rebuilding it and I needed to take the engine out but the swingarm bolt was seriously seized up. After some cutting of the bolt and a torch and a lot of swearing later the engine was out. The swingarm had a pin bearing on each side. The bearings were just dust and rust and it was bad. So me and my dad are thinking of getting some bushings made and maybe stray away from the bearings. Mind you the bike was sitting for a long, long time and that would be why the bearings were so bad. So in the newer bikes what do they use for bushings or bearings in the swingarm pivot?