using diff sizes for tires

[nashimoto]

mga sir, is it ok to mix tire sizes? i currently have 185/55r15 installed, may nagbebenta sakin dalawang 195/55r15, balak ko sana bilhin. so ang maging setup ko is 2pcs 195/55r15 at the back and 2pcs 185/55/r15 front. is this ok? honda jazz po auto ko. panu po ba basahin ang mga tires size details? when i looked at the car may naka indicate na 185/55r15 82v. panu po ba babasahin ito? Thanks!

[stickers]

mga sir, is it ok to mix tire sizes? i currently have 185/55r15 installed, may nagbebenta sakin dalawang 195/55r15, balak ko sana bilhin. so ang maging setup ko is 2pcs 195/55r15 at the back and 2pcs 185/55/r15 front. is this ok? honda jazz po auto ko. panu po ba basahin ang mga tires size details? when i looked at the car may naka indicate na 185/55r15 82v. panu po ba babasahin ito? Thanks!

185 - thread width / tire width
55 - % of thread width as tire wall (height) 185x55 = 101.75
r15 - wheel radius 15"
82 - load index 475 kg
v - max speed rating 240kph



Car Bibles : The Wheel and Tyre Bible Page 1 of 4

[stickers]

once ibang size ang kinabit na tires versus sa stock specs.. speedometer readings will not be accurate.

185/55/R15 - Current rolling circumference 1762.81mm

195/55/R15 - New rolling circumference 1795.98mm

difference = 33.17 or 1.88%

cruising speed of 60kph is actually 61.13 kph




Car Bibles : The Wheel and Tyre Bible Page 4 of 4

[shadow]

Minimal Lang naman yun difference


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[stickers]

share ko lang experience ko dyan sa changing the tire size.. stock size 145/70/R13 on a 5.5" wide rims, palit ako ng 175/60/R13 on a 6" wide rims

The result, sayad sa rear fenders pag 4 passengers sakay.. since yung stock specs ay hindi usle sa body nung car at yung new specs ay nakaapekto sa offset ng wheels. The solution suggested ng casa - return to original stock specs.

My solution - since i like the wider tires, i installed lifters. sa pagpapalit ko pa lang ng tires tumaas na ng 3.5mm yung tire wall plus around 1 and a half inch na lifter.

In your case, I dont think 5.5mm increase sa tire wall/height would be enough para sumayad yan sa fenders/body since you are maintaining the same rim width... minimal lang un eh

[sabawballs]

share ko lang experience ko dyan sa changing the tire size.. stock size 145/70/R13 on a 5.5" wide rims, palit ako ng 175/60/R13 on a 6" wide rims

The result, sayad sa rear fenders pag 4 passengers sakay.. since yung stock specs ay hindi usle sa body nung car at yung new specs ay nakaapekto sa offset ng wheels. The solution suggested ng casa - return to original stock specs.

My solution - since i like the wider tires, i installed lifters. sa pagpapalit ko pa lang ng tires tumaas na ng 3.5mm yung tire wall plus around 1 and a half inch na lifter.

In your case, I dont think 5.5mm increase sa tire wall/height would be enough para sumayad yan sa fenders/body since you are maintaining the same rim width... minimal lang un eh

possible din because of the width of the rims + wrong offset.

[shadow]

Tama wrong offset, hinde na kasi katulad ng before na Basta mags Palit ok na...
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[bobzy]

with regards to rolling circumference....is there a way to calibrate the speedometer kung sakaling baguhin yung tires from stock to a customized size?
if yes, saan po ang shop? TY po Masters!

[nashimoto]

185 - thread width / tire width
55 - % of thread width as tire wall (height) 185x55 = 101.75
r15 - wheel radius 15"
82 - load index 475 kg
v - max speed rating 240kph

thanks mga sir, clarify ko lang, does this mean mas malapad ang 195 vs 185? di po ba mas maganda kung malapad ang gulong kasi mas stable ang takbo ng auto? yung height, yan yung sukat from the rim to the thread? yung wheel radius yan po yung sukat ng rims? thanks!

[stickers]

does this mean mas malapad ang 195 vs 185? - Yes
di po ba mas maganda kung malapad ang gulong kasi mas stable ang takbo ng auto? - not necessarily
yung height, yan yung sukat from the rim to the thread? -yes
yung wheel radius yan po yung sukat ng rims? -yes

[Type 100]

with regards to rolling circumference....is there a way to calibrate the speedometer kung sakaling baguhin yung tires from stock to a customized size?
if yes, saan po ang shop? TY po Masters!

Modern cars use a vehicle speed sensor (VSS) that measures tire revolutions and sends the signal to the speedometer to indicate linear velocity. Basically this is trigonometry at work - you're converting the angular velocity of the round wheel/tire combo into the linear velocity of road speed.

You could probably have the VSS recalibrated but it'll take a lot of trial and error. A friend transplanted the Honda S2000 gauge cluster into his EG Civic a few months ago. Speedometer calibration was his biggest headache and it took a long time to get it right - I don't know the particulars of how they did it, but it was most likely a matter of getting the S2000 digital speedometer and the EG's VSS to talk to each other, not actual recalibration of the VSS. I think he had ForcedSpeed/FixStop do the job for him if memory serves.

[bobzy]

Modern cars use a vehicle speed sensor (VSS) that measures tire revolutions and sends the signal to the speedometer to indicate linear velocity. Basically this is trigonometry at work - you're converting the angular velocity of the round wheel/tire combo into the linear velocity of road speed.

You could probably have the VSS recalibrated but it'll take a lot of trial and error. A friend transplanted the Honda S2000 gauge cluster into his EG Civic a few months ago. Speedometer calibration was his biggest headache and it took a long time to get it right - I don't know the particulars of how they did it, but it was most likely a matter of getting the S2000 digital speedometer and the EG's VSS to talk to each other, not actual recalibration of the VSS. I think he had ForcedSpeed/FixStop do the job for him if memory serves.

Thank you so much for the input Sir! Im just planning to change my stock Altis '10 rims into something like 215/45/17.
Or if budget permits an 18 is also an option but as you have said speedo calibration will be just a nasty headache....then maybe
ill just have to live with the assumption of my speed since its just little difference i presume?