Thanks very much for taking the time to reply. I39 it isEH Steve
If you go into the microfiche files your roadglide has a 32 tooth frt sprocket & a 70 tooth rear pulley. Your stock belt is a 139 tooth. The teeth on a belt measure .5625 apart which when you multiply that x4 = 2.25 inches. I'm not so sure the 135 belt will work the adjustment on the swingarm is only 2'' long.
My 2000 FXST has the same front 32 toothed sprocket & the 70 toothed pully but your belt is 2.25" longer.
I have gone to the 160 tire myself by way of the Duece rear wheel which is 4.5" wide without changing the swingarm.
http://partsfinder.onlinemicrofiche.com/ronnies//showmodel.asp?Type=13&make=hdmc&A=236&B=21
Dare
2000 FXST