I don't know if they sell these forks separately, but my Novara Forza has a front shock that locks on or off with the turn of a knob. I normally leave it on (use the shocks) because I ride mostly in the city where it's pretty rough - potholes, unpaved stretches, curbs... But when I do take it on the roads and bike paths, I can lock it off for a solid ride. Didn't realize what a luxury this was when I bought the bike.