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I remember reading that this was a common problem with Miche Cranks - Miche BB _Dolan PC, so its not just your Parallax. I have the same setup on my Dolan Track Champion but strangely enough the Miche 107mm BB gave me a 45mm chainline. Now I`m using a Sugino 105mm BB for a 43mm chaninline and spaced my cog out by 1mm.
As other people have said in the Mash thread I would either add another one or two BB spacers or get a wider BB so you are not hitting the chainstays when the crank flexes under power. Perfect chaninline isn't that important but maybe you can space the cog 1mm further out at the same time, that way you still have a perfect chainline
BTR88
@Kreddy
Need your advice, tryed my luck here - https://www.lfgss.com/conversations/146400/?offset=2550 but did not get any helpful information.
I'm running the Miche Primato Advanced (JIS) crankset + Miche Primato BB (JIS) 107mm + Miche primato hub + Miche cog. The chainline is perfect, what is not perfect is this:
Please look at the spacing between chainstay and chainring bolt with a 107mm BB on a 2015 Parallax. It's like 1mm, because of a bb spacer my LBS put in. If not that spacer I wouldnt be able to ride it at all.
I had those exact parts on my previous frame 2013 Langster and the spacing was fine. Since when 107mm bb is not enough length on a track frame?
Any advice or user experience?
Thanks!