My Fargo fits on the bus racks with fenders. I push the hook right up to the fender, and my fenders are tough (stainless steel) enough I actually wedge it a little between tire and fender. I don't think it would fit if I had the original 29er MTB tires though, even without the fenders. The hook won't pull out far enough. I have 700x50 tires on it for now.
What is the wheel base on the OP's Electra?