I was going to do a post on what exactly was done with this custom fork build, but since it's all a bit experimental and I'm more into trying to get it right than take pictures constantly, here's the short story. Stock 1970 shuttle valve fork tubes with the upper small hole filled with weld because the inner spacer piece that goes between the two bushings has been shortened by one inch. This makes the forks one inch longer and more importantly gives an extra inch of travel. The shortened spacer idea came from old articles on desert sled fork tuning where they would sometimes remove the entire spacer for more travel. There are many different combinations you can do with the Triumph forks 1947-1970, some good, some not so. To make up for the shortened spacer you need to either use a longer spring or add a longer shock abutment on bottom or top. I used Cub top spring abutments that came on some models for a short period of time in the early 60's (anyone got the exact timeline?). These were turned down around the top to fit perfectly into the top covers and shortened slightly in a lathe to give a final spring pre-load of about 7/8" of an inch. For springs I used some of the progressive types sold on ebay for about $60. The covers are cut down and re-chromed MCM FC-2's. I love the way they look, but am really hoping that they work better than your typical mid 1960's stock type clunkers!
