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The WD Motorcycle forum
My M20 came at 'demob' with 3/8-1/4 BSP tank adapters and taps that were 1/4 x 1/4 BSP at both ends....So at some point REME were making the change...Ian
email (option): ian@wright52.plus.com
Thanks All, the thread is definitely different at both ends, I will try measure the thread and see how its drilled. thanks chris
email (option): cdpeach@hotmail.com
BSP(P) thread dimensions are as follows...1/8" BSP: O.D 0.383"...Threads per inch : 28. 1/4" BSP: O.D 0.518"...TPI 19. 3/8" BSP: O.D 0.656"...TPI 19...Ian
