I've owned a '71, '72, '74 and '76. For what ever reason, the '74 TX650A was my favorite rider. I had Avon AM26s on it and it just felt right. IIRC the Avons were a little smaller than most prefer, 100/90-19 and a 110/90-18. That bike turned in well and felt planted in the turns even with it's stock suspenders.