Couple of questions here really.
First is about chainline. I understand most bikes have a 50/51mm chainline. I think this is measured from the centre of the bottom bracket shell to the middle (in the case of a triple) chainring? Is that correct.
Supplementary question to that is, on a 10 speed double, is the chinaline still measure to the bigger of the two rings or do the two chainrings sit either side of the 50mm line?
Second question ;o) and I realise there have been a thread or two on here already but on an Orange 5, 2007, is there a chainset that allows 38 ring to work without hitting the swingarm? I see one solution is to stick a second spacer to push the chainline out but on a typical XT style chainset does that affect the ability to get the cranks secured properly?
Cheers,
Dave