Thread: tire direction
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Old 06-17-23 | 01:38 PM
  #3  
FBinNY
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Joined: Apr 2009
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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Your photo didn't link, and if I remember the rules, will not until you have 10 posts.

However, here's some help.

Most bike tires are not directional in any way. For those that are, the right direction depends on the intent. On a rear mtn bike tire the intent is to get the most push off in soft sand or mud, so mount the tire so the "harder" side of treads are to the rear on the bottom (forward on top). Reverse this in front so you get the maximum bite when braking.

For road bikes tread is mainly cosmetic, though it has some effect when the road is dusted with wind blown sand. Typical road treads often have herringbone type treads, modeled like those on car tires. The logic is that the point hits first and wedges water outward as the tire rolls. This doesn't matter on bikes, since water isn't an issue, but for cosmetic purposes mount so the herringbone points forward on top.
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