Hello,I am looking for new or used but good piston rings for Suzuki GSX 550 EF standard size.The piston rings from GS 250 T are compatible so I would consider buying them since I need piston rings for 2 cylinders.If anyone has 2 middle piston rings it would be great since they are the ones that broke and I'd like to replace them only.However offer what you have and I hope we'll arrange something.All the best.