mid70s Maico bottom steer hd bearing

[JC]

Gents,

Can anyone tell me the ID & OD of the mid-to-late 70s Maico bottom steering head bearing please? 
(After they went to the larger stem/bearing)

thanks

[Mick D]

Hi JC, Maico went to the larger arrangement on the NG(new generation) model, released as a half model in mid 75.

The ID of the taper roller inner is 27mm and the OD of outer tapper shell is 50mm.

Do you want the bearing code number as well? 

[JC]

Thanks Mick, thats all I needed