Wow, some of these bikes look the business. I'm new to Nortons and it was a steep learning curve restoring this 72 commando with 71 engine. Learning about off sets and setting isolastics is all new to a Triumph man. I absolutely love the look of the Corbin seat but understand they don't make it for the Interstate tank. Anyway I decided to design my own using an old Interstate seat base with chopped foam and a redesigned cover.
I think it's worked quite well, love to gauge opinions of you hardened Norton fans. Cheers, Nick.