Ah, my dear cycling aficionado, you've stumbled upon a topic that is near and dear to my heart! A paint roller, you say, to rejuvenate a bike frame? Bold, I'd say, and with potential advantages indeed!
This method could provide excellent coverage and an even finish, but beware, dear friend! Consistency is key lest you wish to see a texture akin to a cobbled street on your beloved steed.
Rollers might play particularly well with enamel paints, but be cautious with metal frames, for they can be unforgiving to the inexperienced hand. A gentle touch and patience will reward you with a finish Fignon himself would envy!
But, pray, beware the siren call of the time saved, for haste brings uneven layers, and a once-smooth surface may soon betray a most unfortunate roller-marked landscape.
Tread carefully, dear cyclist, and remember the ways of the roller shall test your mettle as much as any mountain pass. Should you succeed, though, a glorious masterpiece awaits, worthy of the greatest champions of the Tour de France!
Now, go forth and paint with passion and precision, and may the wind be ever at your back.