120kgf is how many nm and how do you work out?
Pretty certain it's a factor of 9.81, so 120kgfm = 1177nm
I just googled kgf to nm though 😉
One is a unit of torque the others is the force exerted by a kg in gravity
They don't convert directly
You need a length componant for your kgf to under stand it's acting moment.
Those aren't compatible units.
Spoke tension wouldn't make any sense in Nm, it's not a torque.
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1 N = 0.101972 kgf
1 kgf = 9.807 N
Some common drive side rear/disc side front targets;
100kgF=980N
110kgF=1079N
120kgF=1177N
Use the park tool tension meter and aim for 22 ;o)
@scotroutes - I mean, maybe that means he uses his phone to access stw? 🙂
Stupid/correct answers aside. And assuming you're talking about wheel building, It's a measurement of tension, i.e if you could hang a 120kg weight off the end of the spoke and just nip up the nipple.
If you knew the thread pitch then in theory you can derive it (assuming low enough friction on the threads). That's how you setup things like car differentials, there's a preload target on the bearings and the usual method is to tighten a big nut onto a crush spacer so you know the torque on the nut, therefore the force on the spacer, you know how much the tube crushes under that force and after all that the bearings are just right (or it's a squealing mess).
Use the park tool tension meter and aim for 22 ;o)
This.
Might be useful to know what the spokes are first before aiming for 22.
Use the park tool tension meter and aim for 22
Depends on the spoke, would be ok for a 1.8mm steel, could me massively over or under tensioned for other spokes.