Hi all. Couple of probably stupid questions but im new to the maintenance side of things and id rather not mess the bike up before its even got going properly, so.... 1) On the chain side of things, when the chain moves around the chainring at a point in the rotation it moves in a good 1-2mm inwards and grinds against the front part of the derallieur which makes the ultimate alignment rather tricky as it needs to be so far out that it then grinds against the smaller cogs for about 3 gears which obviously means im losing alot of options further up the set. Is the chainring potentially not quite square or is it the derallieur? Any pointers appreciated! 2) Now for the dust cap on the rear wheel (non-geared side), this causes a rather annoying squek as you go along - does this need to revolve with the wheel or be "stuck" to the axle(?) and not spin?This is purely for my sanity so if its best just left alone i can live with it! Thanks in advance for any help or advice people have!