I'm considering fitting Dunlop TT100 K81 tyres to my F1 when the rebuild is finished. Whats the best size; 4.25 x 18 rear, and 4.10 x 19 front, or should I go smaller ie; 3.60 x 19 front and 4.10 x 18 rear
As the standard size is 4.00 x 18 rear, and 3.25 x 19 front, is the gearing affected, will the speedo be way out?
