Hi Paul
Thank's for the note but I was very lucky to find an exact replacement complete wheel with a brake hub,sprocket attached to a rusty rim, The wheel and brake plate are for sale (cheap) if any one needs a FWH wheel.
Kindest regards

Hi Mick
I had a stroke of luck at Popham auto jumble yesterday in the pouring rain, just about to leave and noticed a complete wheel with the hard to find sprocket in a very good condition and all for £75.00 !!
Happy days
Thank's for your post regarding the re toothing.
Regards
Rich d

Hi Julian
I Did thank you and hopefully you have received my response, this is all very new to me and I hope I responded to the correct person.
Regards
Rich d

Hi Johnny
Many thank's for the note and I will contact them, John Budgen was very helpful over the phone but could not help out with a rear sprocket or even anything else that would possibly fit.
I think the FWH will only use that type of sprocket with the built in bearing housing.
Regards
Rich D

Hi
I am looking for a rear sprocket part number 4230-56 for a nh 350, can anyone help as I cannot find one anywhere (47 t)
Thank you
Richard Dillon