Go to "Simplex with non-original engines" category & select my thread "Simplex 5 speed build" page 17 and the long post about 2/3rds. down the page for by "test" of the Nola tires....I'm still running NOLA Vee tires on two bikes & they are still my choice. Only draw back is it isn't a vintage tread...which I wish they offered, but price performance is quite good and I ride every day, weather permitting and will eventually replace, when necessary with NOLA's. Rick C.