You’re looking at a new metal camshaft locking tool for the ST4 AND ST4S from model year 2001. This tool can also be used on the 2002 748 fitted with ST4 heads and the Monster S4R. This engine is known as ‘Testabassa’.
Please watch the video in the listing for more information on the Testabassa head.
This tool has been designed to precisely fit between the 2 camshafts on the vertical cylinder to hold the inlet cam in place allowing for easy replacement of the cam belts.
Thanks to DesmoWerx YouTube chanel for the use of his video.
Any questions please don’t hesitate to get in touch through ebay.