20 g cartridge out to be perfect,

i use this guy on 25's and 28's and it is like roller skating in a gravel pit, so with a 32 it ought to be just right.

people rag on the bontrger inflator, but i have no problems with it, especially on bontrager tubes, and you can remove the inflator and check the pressure, and put it back on there for more juice if you need it, in other words, it ain't a one shot deal like the cheap inflator i used back in 86.