I need some advice from someone with more experience than me with adjusting mechanical gears specifically Campy Super Record Post-15. Just had group set put on my new bike R5 and everythingg was shifting perfectly. Purchased new Boar Ultra 35 and put on bike the other day now bike will not shift reliably at all. When down shifting the der. moves but chain does not and you hear clanking, hit button again it drops down to cogs, up shift just clanking upshift again chain goes up 2 cogs. Put chain on 5 sprocket pulleys are lined up perfectly. I can not see how changing a wheel could do anything unless the skewer is a lot tighter and der. has moved now. Any advice in what to check first or do would be appreciated before I start removing der. to check hanger straightness. Also bike was built for me I did not do initial setup.