BSA Owners' Club Workshop Discussions

The BSA Workshop => Singles => Topic started by: ferretjuggler on 29 Mar, 2025, 18:06

Title: OIF forks onto Starfire frame ?
Post by: ferretjuggler on 29 Mar, 2025, 18:06
Any easy way to attach an OIF front end to a 1970 Starfire frame ?
Obviously it's possible but I'd rather not spend a fortune on machining bits if it can be avoided.
Title: Re: OIF forks onto Starfire frame ?
Post by: Rupert on 29 Mar, 2025, 21:23
Simplest way is to keep the original cup & cone headstock bearings from the starfire and turn a couple of thin flange top-hat spacers to reduce the i/d of the cones to suit the yoke stem. The spacer in the bottom cone will need to be counterbored to clear the bottom yoke spigot around the stem. Otherwise everything else should fit easily.
Title: Re: OIF forks onto Starfire frame ?
Post by: Rupert on 29 Mar, 2025, 21:25
Just remembered, top bearing dust cover may need a one-off making.
Title: Re: OIF forks onto Starfire frame ?
Post by: ferretjuggler on 30 Mar, 2025, 10:39
Many thanks !
I do know someone who would do the machining work for me, but bribery will be required.