The few pistas I've seen looked like you could drill the rear for a brake. I would have it professionally done, it would suck to ruin a brand new frame. you could also build a coaster wheel for it, that would be cooool! Doesn't the fuji come rear brake handy?
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I'm not one for fawning over bicycles, but I do believe that our bikes communicate with us, and what this bike is saying is, "You're an idiot." BikeSnobNYC