stick a lock through your chainring and rotate the wheel backwards with your hands.
This is not a good way to rotafix, you can bend chainrings, or worse. Best to pop the chain off the front and wrap it round the BB shell, no chance of damaging anything then.
This is not a good way to rotafix, you can bend chainrings, or worse. Best to pop the chain off the front and wrap it round the BB shell, no chance of damaging anything then.