Can you just buy exercise offsets and save yourself the time of working for them? Seems like they'd be cheaper than carbon offsets? Just find some stoner and pay him to set around watching tv eating cheesy poofs.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"