Hi,for what its worth,when i purchased my 94 Nostalgia it came fitted with a 42mm mikuni carb which WAS fitted with a single throttle cable and after amonth of riding-yup,you guessed it,the cable snapped in the middle of nowhere.I went to a local cable manufacturer who made me up a replacement[the local harley agent put the replacement for this in the too hard basket!] Within a month same thing happened,so in all i had the cable remanufactured 3 more times,so as you can imagine i lived in fear of the cable braking and would part the clam shells around the throttle before each and every ride to check for fraying-the fraying and eventual snap always happened at the throttle grip end. At this point i put the question to HD TALKING and if memory serves correctly,the fellow rider who is a regular contributor here from Scotland [thank you sir] replied that he had the same carb set up but that he used the push /pull twin cables,so i ordered up a pair of cable from JP cycles and they have been on th ebike now for over a year with no probs-admittedly the return spring is a tough critter on the 42 Mikuni but that seems to have cured it-just my 20 cents worth,hope this helps. Nick