Honda-SOHC

Honda part numbers are not complicate, the first numbers tell you what it is, the middle three what model first used on last three manufacturer or country code or supercision code so 283 is the model code you need, the supplier said sounds like 280 which is different

Does the UK CB400F2 have a speedometer have both MPH and KPH on it?

Part number is 41201283000 so i would say 283 not 280 but that is a pure guess

Whilst I’m working on the forks I’m thinking ahead; optimistically, about putting the front end back together again. I’m going to stick with old school bearings following the comments. I’m assuming I need to remove the lower bearing cup/ race from the the stem on the lower triple tree as it will be worn. Looking at it there is a rubber washer (maybe 2?) beneath it and a shim beneath that. I guess these are removed by levering/bashing from beneath using a drift or cold chisel and then the new one needs a new shim and rubber washer(s). Does this sound like the right approach?

Well he is just a bloke on Ebay Ash so don`t know how good he is..........as he just asked to supply the dimensions so he could check to see if they is one to match it ..... so if you can just tell me if it is flat on both sides will due I think.