Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post

AKADriver · 07-04-2002, 11:11 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (DrDubbleB @ June 26 2002,9:29)</td></tr><tr><td id="QUOTE">40 = size of sidewall of tire aka profile (mm)</td></tr></table><span id='postcolor'>
This is incorrect.

The second number is the profile, but it is not just a sidewall height in mm.  It is the sidewall height expressed as a percentage of the width.  A 215/40ZR17's sidewall would be 215 * .40 = 86mm tall.

07-04-2002, 11:11 PM	#2
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 39 Posts: 3,112 Trader Rating: (0)	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (DrDubbleB @ June 26 2002,9:29)</td></tr><tr><td id="QUOTE">40 = size of sidewall of tire aka profile (mm)</td></tr></table><span id='postcolor'> This is incorrect. The second number is the profile, but it is not just a sidewall height in mm.  It is the sidewall height expressed as a percentage of the width.  A 215/40ZR17's sidewall would be 215 * .40 = 86mm tall.