Okay picked out which tires to mount to my Stock CB 750 K5.
Going with the Avon Roadrider's AM 26 tires, 3.25-19 Front 4.00-18 Rear.
Have the front tube sorted out, but the rear tube thru IRC gives me 2 choices.
Can either use IRC T20063 which fits 3.50/4.00-18 tires. Or IRC T20064 which fits 4.00/4.50-18 tires or 110/120 tires.
Which Rear tube should I use?
