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Hi Bob...Is that Kidderminster Motorcycles?...They sell the BSA/Triumph adapter modified for the earlier box...
With this adapter it's basically a 'straight fit' of the Triumph clutch to the M20 box as it solves the misalignment problem that occurs if you use a standard BSA/Triumph adapter.
Originally the adapter was made by BSA to fit the Triumph clutch to swinging arm models..
You will also need the appropriate washer and mainshaft nut....Ian
email (option): ian@wright52.plus.com
Why not install the wonderful "Gerrit Bruggink"-clutch? See http://thb-support.nl/webshop/index.php?cPath=38_25_47&sort=7a&language=en
Not cheap, but perfect
email (option): viaconsu [at] planet'dot'nl
Bob OBrien
One of the vendors is selling an adaptor so that M20's can utilize a Triumph clutch. Has anyone done this, and what are the pro's/con's? Thanks, Bob
I fitted one of Kidderminsters 4 spring kits to my M33 Bob. I had just about torn out every hair on my head trying to get the BSA 6 spring clutch to work properly!! I must say, it is so much better, but I have a single spring clutch ready to fit to my M20..
email (option): ian@integsci.com