A decent pair of gumwalls are proving remarkably difficult to find. The pair of Vittora Open Corso Evo SC I bought took me 45 mins to stretch onto the rim and after two installation pinch flats (not using a tire lever...) I'm giving up on them. I ordered a pair of Veloflex Master from the US yesterday, and although I talked to the dealer on the phone, I'm not 100% sure they've actually been ordered. Everything else on the bike is finger-tight at the moment so will certainly spin the bar down a bit once the cables and final touches are added. Thanks for the tips!