Dimensions: 65mm from end to end. Hey........what did you do to the old one? Whatever it was, we have what you need right here!
Dimensions: 80mm end to end. If it's all worn and clattery you've come to the right place. Although the three different Mamod crankshafts are shown here, you will get the correct one for engine model SP4 - DON'T WORRY ABOUT THAT!
Dimension: 100mm end to end." Lucky you've got any crankshaft left the number of hours you've been running it!" (A wife)