Being able adjust a head set is just one of those jobs that will ultimately save you a early morning pre-ride trip down to the bike shop. As always we’re more than happy to help but being able to fix it yourself isn’t a terrible thing, is it? Provided that you have basic maintenance gear adjusting your headset should be a doddle.
Most commonly your bicycle will have a top cap bolt and 2 or more pinch bolts at the side of the stem. The pinch bolts are designed to hold the stem tight to the steerer tube of the fork. The top cap acts as a compression bolt, which pushes the stem down thus tightening the head set.
Firstly undo the pinch bolts on the side of the stem until the stem can rotate independently from the front wheel. Do not attempt to tighten the ‘top cap’ whilst the pinch bolts are still tightened.
Next you’ll need to adjust the top cap. This component controls the compression on the headset so it is important not to over tighten this. Generally 3-4nm will be perfect. If you don’t have access to a torque wrench a good gauge is to tighten the top cap until you can’t rotate the spacers under your stem with your fingers.