It's a long ways from the builder's jig in Taiwan to you door via the QBP warehouse ,
it may never have been spot on in the first place .. before the cut and patch..
chain drive you would never noticed the imperfection , now you do..
did the person doing the modification check it on an alignment table ?
the top of those is very Flat as a reference surface
Last edited by fietsbob; 04-02-14 at 10:07 AM.