170mm arms. 48, 38, 28 rings. I didn't spend much time cleaning. It should polish right up before installation. I did damage one of the plastic dust caps. It won't stay in place without some sort of modification. Any questions, please ask. I will be listing a number of Suntour X-1 components in the next two days. I could work a package deal. Check out my other listings for vintage parts. Any questions please ask.