I'm back into cycling now. Been away for 8 years and weigh 275. I'm riding my mountain bike which weighs 23lbs and no issues, but I have a rode bike, it's a 1983 Giovanni Battaglin, only 300 of these were made that year in Italy. Now they're made in England. Needless to say, it can't be replaced. The last time I rode this bike i weighed 245lbs. My question is, should I wait to ride the rode bike, or do you think it can hold me up? Please advise. Thanks in advance.