Greetings: I'm looking for specific information regarding the install of the CRF250X headset: Preload torque and top nut torque. I don't own an -X myself. The questions came up on someone else's bike. I've searched TT..found things like 'I just give it a good tug..' and 'I tightened mine to 100ft/lbs this time..'. I've been told the manual specifies a torque of 80ft/lbs for the top nut. Most of that seems incredibily excessive to me. What's at issue: After the preload is set by the spanner nut, after the top triple is placed on the stem, a torque of 80ft/lbs on the top nut changes the preload! That much force increases the bearing drag a LOT. Seems strange that, having gone to the trouble of adjusting the preload in the first place, you completely negate that setting by reefing on the top nut. And...where does the difference in play come from? The spanner/stem threads are that sloppy? I have never seen a bike that, with steering stem bearings correctly installed, showed significant resistance in lock-to-lock movement with the forks and wheel attached. Usually, you can barely feel resistance in the tree without the forks/wheel attached. (That said only as a reference to 'feeling' of resistance. You don't tighten the top clamp before you put the fork tubes in and center/align the front assembly.) My Kawasaki has a steel stem, a 30mm top nut tightened to a 33ft/lb. spec. That process results in NO change to the preload/tapered roller tension. How the CRF stem (aluminum) can take 80-100ft/lbs on that 32mm nut I don't get, either. Seems you would need a nut 1" tall to be able to squeeze it that hard and not damage something. Please: Can someone confirm the 80ft/lb. top nut value, and tell me how their preload lock-to-lock turning force changed with that top nut value applied? Much appreciated.