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How do they torque it right?
Put some softjaws in the bench vice, clamp the crank arm with the lock-ring facing up, put the lock ring tool in place, connect a very large torque wrench, then torque to spec.
I usually do this stuff at an LBS...not because it's difficult, more because I don't have anything study enough to bolt a bench vice to that will then take 50nm without getting destroyed.
I think @dammit has used those black n decker workmate benches to do this stuff in the past though.
Howard-
Yeah, I know how I would do it. In their case, they have the tool clamped in the bench vice though, so they'd need a torqe wrench that slides over the crank arm or something silly.
I don't have a bench vice so I'm a bit fucked either way.
I don't have anything study enough to bolt a bench vice too that will then take 50nm without getting destroyed
This.
I'm going to use one arm on the crankarm and then see if I can bodge the torque wrench onto my shifter (pom: adjustable wrench) and get a Nm value that way.
Or I could just take it down to Woolseys in Acton. But... faff...
hippy
I don't think I have a socket big enough for the Rotor/P2M spider. How can I get close enough to their required 40-50Nm without resorting to the "until it breaks then back it off quarter turn" method?
Their own instructions are showing the spider lockring tool in a vice and then tightening via the crankarm. How do they torque it right?
https://www.power2max.de/downloads/power2max_type-s_manual_web.pdf