Originally Posted by
BruceMetras
Just for reference, the Bafang centerline using their stock chainring is 50mm +-.05.. that would put you roughly 5mm outboard .. hopefully the centertrack system will allow for that .. looking forward to your finished project..
If that is the case, then the stock Bafang chainring must have a 6mm dish to it, because the chainring mounting surface came in at 56mm.
I don't know of any IGH's that have the ability to be setup with a 55mm belt-line other than this CS-RK3 cassette IGH. One could possibly squeeze out another 1-2mm inward at most on the front belt-ring by adding spacers or using a flat on the mounting side spider, and indenting the belt-ring to spider bolt heads.
The Nexus 3 SG-3D55 is 43.85mm. Most 135mm IGH's are 43.65-43.85mm according to the Gates Tech Manual.