I fitted some of these on my 600 a couple of months ago and just used a good fitting ring spanner to tighten them up, as I don't have a small torque wrench - only a big un .... As long as you don't spend hours in the gym or struggle opening pickle jars, spanners tend to be the right length to apply a reasonable torque when tightening them to the point your not straining, just make sure you don't get them cross threaded and the mating faces and copper washers are clean first.
On the same subject, has anyone fitted a set to a second gen FZ1S (no ABS), the Goodridge and HEL sites refer to 2 line racing setup rather than the currently fitted 1 into 2 ......