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Tire rotation direction...(8 posts)

Tire rotation direction...UncleMoe
Sep 14, 2001 7:39 AM
When putting a new tire on your bike, is there an easy way to know which way the tire tread should rotate? (Duh, obviously its forward!)

What I mean is, sometimes the tread direction is confusing. Should the writings on the side walls always be on one specific side of the bike?

My MTB tires usually have a directional arrow for those of us who ware slow, but road tires seem to not have these.
re: Tire rotation direction...Cliff Oates
Sep 14, 2001 7:46 AM
Label goes on the right oriented above the valve stem. Tread isn't particularly relevant since a) bikes can't aquaplane, and b) tread only matters on surfaces softer than the tread compound (roads are generally harder than the tires), so tread drection is not relevant on a road bike.
It doesn't mattermr_spin
Sep 14, 2001 7:49 AM
Road tires typically aren't directional.

But for a "professional" look (some may call it "anal"), put the same labels on the same side. And line the label up with the valve stem, too. It makes it easier to find the valve. And...chicks really dig guys who do this with their tires!
So that's why.....4bykn
Sep 15, 2001 1:41 PM
I never get the chicks! I hope my wife doesn't catch me mounting my tires this way! ;)
re: Tire rotation direction...DINOSAUR
Sep 14, 2001 7:50 AM
It doesn't make a difference with road bike tires. Although I mount my tires with the label mounted on the drive line side. The new Conti's have the label on both sides, so it eliminates doing that. I wondered the other day when I was mounting a new front tire if there are manufacturers that make tires specifically for the front or rear? I run two different tires on my bike, a lighter one in front and a beefy one in back. This means you can't rotate, but rotating never saved that much milage for me anyway...
re: Tire rotation direction...Chen2
Sep 14, 2001 8:02 AM
I don't think it matters technically. But by indexing the tire to the wheel (mounting the same way each time) it gives us a way to reference the tire, tube, and wheel when analyzing flats. By convention many riders mount the label on the drive (right) side and with the valve stem centered on the label. Call me anal but on my long valve stem wheels I put the label directly opposite the valve so that the label's weight helps offset the weight of the valve stem.
re: Tire rotation direction...MJ
Sep 14, 2001 8:30 AM
my commuting tyres are Conti Top Touring 2000 - there was a signficant increase in rolling resistance when I put them on the wrong way - the bike actually tracked differently - however those tyres aren't typical road tyres...

the grooves spray water directionally - I always point the arrow of the groove forward
sometimes makes a differencealex the engineer
Sep 14, 2001 8:31 AM
Some tires have directional belts (rare), so those must be mounted that direction, which is usually stated on the sidewall. Cheap $hit tubulars should be considered directional, since there is often an overlap in the innertube seam. In some brands, this overlap can vary from one tire to the next, and it makes a big difference which way the seam is hitting.