Sprite and Mini Forged EN40B Crankshafts

All our crankshafts are manufactured from EN40B Steel, which are forged in specially modieed dies to give a better forged crankshaft than was originally made. Some of the improvements such as the counter balance weights increased to give better engine harmonics. Other options available are: cross drilling, removal of primary gear slot and different flywheel drilling can also be done on request.

Other slight modifications such as the harmonic balancer. Keyway increased in length and lightening of the big ends. Various strokes can be achieved as at the forging stage extra material was added to the big ends, to allow strokes ranging from 76mm to 86.2mm.


Prices and Availability

Please call or email for our latest prices and product availability.

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All information within this website is provided "as is" and Race Engine Components Ltd., makes no warranty of any kind with respect to the subject matter or accuracy of the information contained herein. This website may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein. No part of this website or catalogue may be reproduced with out the express permission of Race Engine Components Ltd.

Issue 43 Updated: 14th March 2022