Hello... greetings! I have a vintage late 80's Vitus 979 and I want to upgrade the wheelset. Currently, it has a 36-spoke, 6-speed Shimano 600 hubs, Ukai rims (?), 126mm... Can I relace the rear wheels with a 130mm hubs (Mavic CXP 33, 32 holes, DA hubs w/ 7, 8-speed cassette)? I know it's only 4mm expansion (2mm on each sides); but will it damage the aluminum chainstays/seatstays of the Vitus? Thank you in advance.