All those who fear upsizing their rims will reduce ride comfort, think again. Its the sidewall height or Profile of a tyre that helps to cushion bumps. Keep the same profile and u are good to go.
Eg:- vjroadies case..
165/80 r14- sidewall height= 80% of 165= 132mm
195/70 r15- sidewall height= 70% of 195= 136.5mm
So in actual, u are increasing the sidewall. and with this ratio ur ride wont be hampered at any cost.
15's look wayyyy cooler than 14's. just make sure the sidewall height remains same and ride will be same.
Speedo Error- To combat this, u have an option of keeping the overall rolling dia of the wheels intact when upsizing.
Stock- rim dia-14(355.6mm)
Sidewall- 132mm(x2)= 264mm
Total- 619.6mm
15"- Total- 619.6mm
rim dia-15(381mm)
sidewall- 239mm(x2)= 119.5mm
profile to be used- 195/65(126.75mm) Or 195/60(117.5)
16"- Total- 619.6mm
rim dia-16(406.4mm)
sidewall- 213.2mm(x2)= 106.6mm
profile to be used- 195/55(107.25mm) Or 195/50(97.5)
These combos will give u NIL or Negligible Speedo error. But ride quality will be decreased at the benefit of handling with low-pro tyres.
That's an amazing calculate.
In a stock 175/65/14 Honda City ZX Vtec, according to the above calculation the only upgrade out of
Stock Rim Dia = 14*25.4 = 355.6
Stock Sidewall = 113.75*2 = 227.5 (175, 65%=113.75)
Total Stock Measurement = 583.1
185/65/14
Rim Dia = 14*25.4 = 355.6
Sidewall = 120.25*2 = 240.5 (185, 65% = 120.25)
Total Measurement = 596.1
195/60/14
Rim Dia = 14*25.4 = 355.6
Sidewall = 117*2 = 234 (195, 60% = 117.00)
Total Measurement = 589.6
195/65/14
Rim Dia = 14*25.4 = 355.6
Sidewall = 126.75*2 = 253.5 (195, 65% = 126.75)
Total Measurement = 609.1
So the nearest seems to be 195/60/14 and the second best is 185/65/14 rite ?
whats the best amongst
1. Yokomoha A drive
2. Yokomoha C drive
3. Potenza GIII ??
Highway and City Drive will be a 50%:50%, a combination of terrain and mountains driving. the upsizing should not effect the driving experience and should not increase the wear and tear of the vehicle - no compromise on dynamics :)
VFM !!!
Kind Regards,
Sudhan