I just replaced the rear on mine and my mechanic recommend ed a 150/60 He used to race bikes and has owned the local shop for about 30yrs. it fit on the rim and on the bike. i really like the lower profile sidewall. it looks great!

Thats interesting , most people say the 150 should not really be used, id like your opinion on how you find it on the bike. Whats the main riding you do with the bike? Mine had a 110/80 f and a 140/70 rear when i got it , ive got a new set ready to fit soon, ive gone with 110/70 and 140/70 this time. One thing i was told by some racers i no is not to have a higher profile on the front on the older bikes.