The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => Frame => Topic started by: Roger (Doomtrainbarx) on 15.07. 2020 21:41

Title: Fork legs
Post by: Roger (Doomtrainbarx) on 15.07. 2020 21:41

Do all A10 fork legs come with the same thread/pitch for the seal holders.
I got some new holders and they dont spin on easily like the old ones do - almost as if the threads are slightly different.

Title: Re: Fork legs
Post by: RDfella on 15.07. 2020 21:48

Should all be the same - across most if not all the BSA range. Probably the chrome plating has got into the threads.

Title: Re: Fork legs
Post by: muskrat on 15.07. 2020 22:12

G'day Doom
RD is right, the same thread.
I had the same problem when fitting new stainless seal holders. Even heat didn't work. Ended up spending hours with fine grinding paste working them on and off (yes I cleaned it all off before final fit). Trouble with that is it also wears the fork leg thread so original seal holders will be loose  *pull hair out*
Cheers

Title: Re: Fork legs
Post by: Roger (Doomtrainbarx) on 15.07. 2020 23:29

RD may  be right about the chrome - the threads look to be shallow - I wonder if I've bought cheap n nasty holders ?

Title: Re: Fork legs
Post by: RogerSB on 16.07. 2020 18:23

You may be interested to read Reply 7 re chrome on the threads and also Reply 25 re different threads.

https://www.a7a10.net/forum/index.php?topic=14235.msg118560#msg118560

Discovered when I overhauled my A10s forks.