So just thought I would share this info as it seems to be a common query. I changed my rear wheel bearing yesterday (2005 gti) and as I couldn't find a definitive answer to wether it had a 30 or 32mm hub I ordered both, it turns out the gti has a 30mm hub. the 32mm bearing was labeled for golf tdi, so I assume all other models use the 32mm? Not sure if this is applicable to all years of gti, would be interesting to hear what other people have experienced.
