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Re: Tyres for TR6

To: Triumph_TR4@ridgecrest.ca.us (Darrell Leach), triumphs@Autox.Team.Net
Subject: Re: Tyres for TR6
From: Trevor Jordan <tjordan@pa.ausom.net.au>
Date: Thu, 14 May 1998 11:32:28 +1000
At 11:12 AM +1000 14/5/98, Darrell Leach wrote:

>Yes the formula is backwards,  A slip of the keyboard.
>But the Chart shows correct numbers, note that the shorter tire
>has a higher speed indicated.
>
>>>Speed at
>>>Indicated                               Approximate
>>>55 MPH.                Tire             Diameter (inches)
>>
>>>55                     185/80/15        26.6
>>>60                     185/65/15        24.5
>>>56                     205/70/15        26.3
>>>59                     205/60/15        24.7
>>>54                     215/70/15        26.9
>>>57                     215/65/15        26.0

The heading on the first column suggests a constant indicated speed, in
which case, a shorter tyre will produce a lower actual speed and vice
versa.  If you really do mean the actual speed at an indicated speed of 55
mph, then the table is also reversed; not just the formula.

Trevor Jordan
74 TR6 CF29281U




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