1974 SF2 steering head bearings

[murphus]

Are the plates under the steering head bearings on a 1974 SF2 strictly necessary? Helping a friend renew the bearings on his and the plates didn't fare so well upon removal of the lower cup and the upper roller bearing, although I suppose they can be hammered flat. The replacements bearings I sourced locally (SFK for the lower, Koyo for the roller) did not include said plates. What happens if they're not used? And if they are necessary, does anyone have a part number?
Richard

 

[sfcpiet]

Are the plates under the steering head bearings on a 1974 SF2 strictly necessary? Helping a friend renew the bearings on his and the plates didn't fare so well upon removal of the lower cup and the upper roller bearing, although I suppose they can be hammered flat. The replacements bearings I sourced locally (SFK for the lower, Koyo for the roller) did not include said plates. What happens if they're not used? And if they are necessary, does anyone have a part number?
Richard

Yes.  Been discussed to death here... the fitment has to do with the design of the frames' headstock.

You should be able to source them from your local bearing supplier, or from the usual suspects world wide.

piet

 

[critter39]

Dam classic racing in Aus has them or Wolfgang in Can

 

[Tippie]

Or hammer them flat. They are pretty soft and generally come out ok.

 

[murphus]

Thanks all. Found them locally, all of $1.41 each. SKF part number AS3552.
Richard