Uses custom chainring bolts
The chainrings, chain-guard and the freewheel themselves are good. Can't say they can "easily" handle the 2-3kW cyclone - they will bend a little under such loads, but "smooth" application of this power works well with this set. Unfortunately though, the chainring bolts are custom made. Mine broke after a year and I'm not able to replace them. No bike shop has these and Luna cycle could not provide them separately (though some credit to them as they've tried). This puts it on a dust shelf and leaves you shelling another $150 for another set you actually do not really need. This should have been thought through, I think.