Mountain Bike Headset Torque Spec
If it is a carbon steerer use carbon paste between the steerer and stem which will reduce the force required.
Mountain bike headset torque spec. Check that there is no play by moving the bike back and forth with the front wheel locked using the brake then i take the bike for a ride. How to tighten your headset road bike maintenance duration. How to replace your disc brake pads 06 14. If the headset develops play over a week or two then readjust and tighten a bit more than last time.
Carefully torque back to manufacturer s spec bikeradar step 13. Just wondering if anyone knows off hand the proper torque spec for a typical stem top cap. This preset is the point where there is minimal movement between the steerer tube and the headtube. At the same time the bearing is loose enough to allow free turning of the fork.
If there is any movement between the bike and the spacers the headset bolt isn t tight enough so try again and again. Playlist 19 videos watch. There are basically three types of torque wrenches the beam type the click type and the dial type. Once the headset is adjusted so that there s no play but still it moves freely tighten the stem clamp bolts to the manufacturer.
In other words a torque wrench set for 100 in lbs might tighten to 96 in lbs or 104 in lbs. As others have said the top cap is pre load only. Torque wrenches available to general industrial work including bicycle work are typically accurate to plus or minus four percent. Mountain bike levers avid built in clamp 4 5 6 8 nm 40 60 in lbs avid strap type 3 2 4 1 nm 28 36 in lbs cane creek 6 9 nm 53 80 in lbs shimano 6 7 8 nm 53 69 in lbs sram 3 4 nm 30 in lbs upright bar levers campagnolo 10 nm 89 in lbs shimano 6 8 nm 53 69 in lbs.
You want the minimum torque to reduce play in the headset. The stem cap torque specification is for safety and bearing tolerance. The cap provides a preload on the headset bearing.