ccohesh@ucdavis.UUCP (Hesh) (06/25/85)
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i recently bought a tire which was labeled to be a rear
tire; the salesperson said that it would work as a front
tire as well. the tire has a marker showing the rotation
direction. i put the tire on using the correct orientation,
but a friend of mine says that i should reverse the tire
since it's not being used as a back tire -- something about
the loading being different. can anybody explain this?
i'm not THAT lazy, but if i don't have to take it off again. . .
thanks in advance...hesh
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UUCP: ...{ucbvax,dual}!ucdavis!ccoheshskinner@saber.UUCP (Robert Skinner) (06/26/85)
> [] > > i recently bought a tire which was labeled to be a rear > tire; the salesperson said that it would work as a front > tire as well. the tire has a marker showing the rotation > direction. i put the tire on using the correct orientation, > but a friend of mine says that i should reverse the tire > since it's not being used as a back tire -- something about > the loading being different. can anybody explain this? > i'm not THAT lazy, but if i don't have to take it off again. . . > > thanks in advance...hesh > -- The reason is that the tire is designed to take stress best in one direction. The back tire gets stressed most when accelerating, since it's on the drive wheel and the weight shifts back. The front tire is stressed when braking, since almost all of the weight shifts forward (witness the ease of locking up the real wheel). So, the rear tire is stressed *with* the rotation and the front tire is stressed *against* the rotation. (Or is that technically "against and with"? Oh well, you get the idea) Glad to be of help. ------------------------------------------------------------------------------ Keep the rubber side down. You're not paranoid if everyone is really out to kill you (and your motorcycle). Name: Robert Skinner Mail: Saber Technology, 2381 Bering Drive, San Jose, California 95131 AT&T: (408) 945-0518, or 945-9600 (mesg. only) UUCP: ...{decvax,ucbvax}!decwrl!saber!skinner ...{amd,ihnp4,ittvax}!saber!skinner
langet@ecn-pc.UUCP (Lange) (07/02/85)
The rotation mark on tires is there because some tires are made to handle
acceleration stress rather well in one direction only. For rear tires
it is for accelerating, for fronts it is braking. So if a marked rear
tire is used on the front it should be reversed. It probably will do
no harm to you or the tire though under moderate riding, although it
will wear faster and unevenly. Usually such tires are for heavy and/or
super bikes, I am suprised you would want a rear tire on the front since
those type of bikes work better (sometimes only), with matched front/rear
tire sets.
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