cant load the pics at work so going on description only. I'm guessing the second bolt is a chain tug and the first is your axle nut, if that's the case you should find the point on your chainring where the chain is tightest and tension the chain with the smaller nut (chain tug) then hold it in place with the first else your liable to pull the thread out of the chain tug.
cant load the pics at work so going on description only. I'm guessing the second bolt is a chain tug and the first is your axle nut, if that's the case you should find the point on your chainring where the chain is tightest and tension the chain with the smaller nut (chain tug) then hold it in place with the first else your liable to pull the thread out of the chain tug.