To answer 3alarmer's questions: No, there is no wiggle at all in the headset, it's very solid. Comparing the original fork to the new one, the new one, at most, moves the wheel a small fraction back towards the down tube. The new fork was advertised as 44mm rake. I don't know the rake of the original Quantum fork, wish I did. I rode again today and did a little better. My familiarity with the new parts and them working in may both be factors. There is another fork for sale on Ebay with a 26.4 crown race and a 40mm rake. Would that change in rake move the wheel back away from the head tube?