TT100s do seem an unusual choice for a plunger A10. All that side tread you can never use... One of my mates used to run TT100s at 18psi in an effort to stop the middle of the tread disappearing so fast. His Triumph did wallow. 30 psi isn't going to do anything for your comfort. I had a 220 mile ride on varying roads on my plunger A7 on Saturday. Good fun, scraping footrest/centre stand on some bends just enjoying myself. Knees a bit stiff after that - must put the linings back in my overtrousers. Oh, the tyres. Cheng Shin 3.00 x 19 trials on the front, Ensign 3.50 x19 trials on the back. 22 psi front, 25 psi rear, still as fitted for the Beamish Trophy Trial.
