Aaron, if the problem persists (which I hope it won't, you better not be committed to a life sentence of bum knee!) I surely see a more modern moulton in your future, like 'nome said... same advantages, but with an ultralight frame and the option of running 11s super record! In case of a full recovery, too. I just loved mine until a heinous vagabond stole it. Really a whole new biking experience alltogether.