Guys, ano official metric equivalent ng 31" x 10.5" R15????
a) 255/70R15
b) 255/75R15
c) 260/70R15
d) 265/75R15
e) 270/70R15
f) 275/75R15
hindi po quiz to hehehe :D i tried computing for it pero ang hirap ma-determine coz the resulting figures are so close.
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Bad Photographer
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January 22nd, 2003 10:46 PM #1
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Tsikot Member Rank 5
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January 22nd, 2003 10:55 PM #2Mahirap yan. gagamitin ko pa utak ko. bukas na lang 10 o'clock na . GOODBYE :mrgreen:
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January 22nd, 2003 11:00 PM #3tama po si afrasay, 10 o'clock na, mahal ang overtime charge. :mrgreen:
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Tsikoteer
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January 22nd, 2003 11:03 PM #4Hmm... a tricky equation!
Pag ang habol mo yung actual diameter ng tires:
Sidewall_Radius_Diameter_Circumference_Metric Size
7.4in_14.9in_29.9in_93.9in_270/70-15
8.1in_15.6in_31.2in_98.1in_275/75-15
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Bad Photographer
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January 22nd, 2003 11:06 PM #5ahehehehe :D Sir Alf talaga!
anyways, heto ang ginawa ko.....
* 1in = 2.54cm
31" - 15"(wheel) = 16"; (total tire dia)
16" / 2 = 8"; (sidewall length)
8 * 2.54 = 20.32cm; (sidewall in cms)
----------------------------------------------------
10.5" * 2.54 = 26.67cm (tread in cms)
----------------------------------------------------
to get aspect ratio..........
20.32 / 26.67 = 0.7619 (ANO BA ITO, 75 NA?)
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to get tread............
*1cm = 10mm
26.67cm * 10 = 266.7mm (MGA CHONG DITO AKO NALALABUAN)
HELP!!!!!!! I just want to compute for my speedo's discrepancy since i upsized my wheels and tires. ty
hehehe 10 na nga, uwi na rin ako!!!
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Tsikoteer
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January 22nd, 2003 11:10 PM #6Pahabol out na rin ako...
check this out pajerokid:
http://www.sgmotorsports.com/tiresize.htm
Baka makatulong sa pag compute mo ng actual speed.
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Tsikoteer
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January 23rd, 2003 09:09 AM #7buti na am ko binasa ito
the nearest possible answer is
265/75/15
dont ask why how and what?
matagal ko nang compute yan nung naka 255/70/15 pa ako
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UST ENT-HNS
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January 23rd, 2003 04:08 PM #8Bakit hindi mo na lang sukatin yung overall diameter using a tape measure? Madalas din namang inaccurate yung size sa side wall by 0.4"-1.0", eh.
http://docotep.multiply.com/
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Bad Photographer
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January 23rd, 2003 06:35 PM #9Otep, thats exactly the point. Hindi accurate yung "tale of the tape". Tire wear, load, air pressure, temperature and weight all play a factor in the diameter. i'd rather get the "official" size coz malamang ito ginamit ng manufacturer nung kinompyut nila yung ikot ng gulong para sa speedometer reading. :D
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