BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: Pete Gill on 12 Apr, 2023, 23:37

Title: A65 rear wheel
Post by: Pete Gill on 12 Apr, 2023, 23:37
Hi All
I'm working on a 1964 A65 and presently scratching my head trying to work out the spacers and speedo on the back wheel. In short the bike i have acquired as a non runner and needs quite a bit of work. My knowledge of BSA wheels is limited to an older B31 rigid, so both the front and rear wheels on this A65 are different to my B31. I think you'd call the rear a QD? I must say I'm quite impressed with the engineering design of it! My initial concern though is that the speedo box rotates with the wheel rather than allowing the hub to rotate separately. I include photos and i wonder if the spacers are not correct or bearings not seated correctly?
I believe the early bikes used speedo from the gearbox  but i can't do this as my engine is from 66
Pete
Title: Re: A65 rear wheel
Post by: EDDIE SIMPSON on 13 Apr, 2023, 00:41
hi pete,
small spacer goes inside speedo drive and lipped spacer between speedo and fork. when spindle is tight the speedo should stay in place.
Title: Re: A65 rear wheel
Post by: Pete Gill on 14 Apr, 2023, 09:28
Quote from: EDDIE SIMPSON on 13 Apr, 2023, 00:41
hi pete,
small spacer goes inside speedo drive and lipped spacer between speedo and fork. when spindle is tight the speedo should stay in place.
Hi Eddie ,
Thank you for this and yes I think it should. Seemingly though the inner smaller spacer seems to sit too deep to clamp the speedo drive body between the inner and outer spacers. I'm going to investigate whether the bearings are not seated properly.
Title: Re: A65 rear wheel
Post by: DAVE BRADY on 14 Apr, 2023, 10:24
Hi,

Can you post a photo of the speedo side of the hub?  This will help to see if the bearing and the sleeve are sitting correctly.  I think that the sleeve is stepped to locate the bearings and whilst the drive side sits flush with the bearing the speedo side protrudes through so that the recessed end of the spacer sits over it.

Dave.
Title: Re: A65 rear wheel
Post by: EDDIE SIMPSON on 14 Apr, 2023, 11:24
is it a possibility that the hub distance piece between the bearings is fitted around the wrong way?
Title: Re: A65 rear wheel
Post by: Pete Gill on 14 Apr, 2023, 16:06
Yes here's a photo of the speedo side of the hub