thanks for the reply . . . actually it wasn't the spacing that caused the need for spacers. One of the triangular support tubes on the Tubus rack wouldn't clear the downtube on the Cannondale. Otherwise, yes, it had ample flex to have accomodated the width spacing of the dropouts. I think if I can find a local shop (Portland, Oregon) that has either a Jannd or Tubus front rack in stock, I can quickly assess if it'll have the same issue up front.