Originally Posted by
bikingtotown
I just figured they would only help with traction on loose terrian and slow me down
That's right. A dirt road is not offroad and slight or no tread is usually fine.
There's always style to consider too. Plenty of people in the world ride around the suburbs on mountain and cross and dual sport and gravel bikes with knobbies because they look tough and imply you could take the bike offroad if you wanted, even if you never do. Same as SUV's.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."