His Brain is Gone!
Join Date: Sep 2006
Location: Paoli, Wisconsin
Bikes: RANS Stratus, Bridgestone CB-1, Trek 7600, Sun EZ-Rider AX, Fuji Absolute 1.0, Cayne Rambler 3
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For some, a 38mm tire is thin. The typical comfort, mountain, and cruiser bike comes with thicker tires than that. I would hazard that perhaps as many as 80% of the bikes sold in the USA have tires that wide or wider. After all, road bikes make up about 2%-3% of the total bicycle sales.
I suspect a Trek 730 would take a bit wider of a tire. Maybe a 700x42 or even a 700x45. You would need to ask him how much clearance there is within the fork around the present tires. A number of present hybrids come with 700x42 tires.
"Too often I would hear men boast of the miles covered that day, rarely of what they had seen." Louis L'Amour
There are two types of road bikers: bikers who are faster than me, and me. Bruce Cameron - Denver Post