
Originally Posted by
zix888
we will use the tires width , since they wider than the wheels.
oem tire width is 215mm, while the 19" is 245mm, which is 30mmm wider than the oem( 15mm on each side). if you got an offset same as the oems, which is +46, 15mm lang sana ang ilalabas ng tires, but since mas mababa ang offset by 4mm, i-add mo siya sa 15mm na inilapad ng tires mo, that is 19mm. same is true with the back part of the tires, i-less mo yung 4mm sa 15mm, thats is 11mm.
sa over all dia naman,
constant na yung rim dia 19" plus yung thickness ng tires. now yung kapal nung goma is indicated already sa 245 45, this means na yung kapal niya is 45% nung lapad na 245mm. 245x.45=110.25mm . yan ang kapal ng tire, pero when you measure the dia of a wheel/tire, 2 portion ng goma, sa taas and yung nasa bottom, so multiply 110.25x25=220.50mm, i-convert mo sa ", 220.5/25.4= 8.681". add the wheel dia. and this, its 27.681"
oem is only 27.157"
their difference is 0.524" also equal to 13.3mm(overall) . di ba hatiin mo sa 2 kasi tire portion is top and bottom, kaya 6.65mm lang actual na itataas ng oto mo.