BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: chaz on 09 Jan, 2020, 19:27

Title: B40 head bearings
Post by: chaz on 09 Jan, 2020, 19:27
I notice from the parts books there are different numbers for the steering head bearings for 1964 and 1965 as well as the ES and WD models.
my question being is there any size difference between the bearings themselves?

I am thinking of fitting taper roller bearings and wondered if its just the top cone and dust cover that differs.
otherwise I will have to get dirty this weekend as I think frame is 64 and forks 65.