<div dir="ltr">From TriumphSpitfire.com reference section<div>(Thanks to Shawn Frank)<br><div><br></div><div><span style="color:rgb(0,0,0);font-family:Georgia,serif;font-size:17px">4.875:1</span><img src="http://www.triumphspitfire.com/images/whitedot.gif" width="5" height="5" style="box-sizing: inherit; border-style: none; display: inline-block; height: auto; max-width: 100%; color: rgb(0, 0, 0); font-family: Georgia, serif; font-size: 17px;"><span style="color:rgb(0,0,0);font-family:Georgia,serif;font-size:17px">948cc Herald Saloon (G case #) (not interchangeable with 4:55:1)</span></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Nov 24, 2025 at 1:34 PM James Palmer via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I have what looks like a Stanpart ring and pinion for a “small” Triumph.  In a StanPart box, but the part number is illegible.  By my count,  the pinion gear has eight teeth and the ring gear has 39 teeth.  4.875:1?   What Triumph used that ratio?<br>
<br>
Jamie Palmer<br>
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