Meanwhile the other two just need you to remove the star nut - no special tools, no special top caps. The Specialized SWAT tool has the fewest Allen keys and features, but it's the easiest to install and by far the easiest to use. Plus it's fairly light and you don't have to thread your steerer. What you say in essence is true....it could or can be done. I'd thought about what you could bond it with..metalset, epoxy resin etc etc. The trouble is, it would probably be ok...but what good's probably.

So if you’re looking into extending that steerer tube, we humbly suggest you reassess and go for a new front fork, a high-rise stem, or a different bike. You'll likely find numbers like: 41mm, 41.8mm (we round up and label this 42mm), 47mm, and 52mm. 3. FORK STEERER TUBE DIMENSIONS – Almost every single modern bicycle fork has an upper steerer tube outer diameter of 28.6mm, or also referred to by 1 ⅛ in. Are mountain bike forks interchangeable? You’re likely to find yourself in this position if you’ve bought a second-hand bike and the previous owner has cut the steerer tube shorter than your desired length. If you need to add 50+ mm you may have the wrong bike, or try to make the wrong bike out if it. Or someone cut the fork steerer way too short (one reason to not buy complete bikes..). Sorry for the bad news. Maybe try very high riser bar.

A stem riser is a hollow tube designed to fit over your fork's steer tube where it goes above your bike's head tube by means of pinch bolts similar to what you would see on standard threadless stems, effectively extending the length of your steer tube and putting the rider in a much more upright position. What is the steerer tube on a bike? The expander plug reinforces the area the stem clamps to and prevents damage to the layers of the carbon fiber (Fiber layers can also loosen over time especially with repeated tightening and loosening of the stem clamp). How much does it cost to cut steerer tube?

The answer is no, it's not significantly different in terms of safety whether your stem got where it is using an extender versus an uncut steerer.I just take what is needed not what is more comfortable if you puncture (extralight tube for mountain rides then ride at 99% and not 100%).

You’ll cycle faster with a lower handlebar stem and a cut steerer tube, but leisure cyclists might not want to bother with a serious bike modification like cutting the steerer tube.If your second-hand bike’s steerer tube has come up short, use some of that money you saved buying second-hand to refit a new fork. In theory, yes it is possible to make them longer, however, for safety reasons we have set the maximum height at 18mm. We suggest you have at least half of your stem clamping around your original steerer tube. On a bike, the rider is able to set their desired handlebar height by mounting the stem at the appropriate point on the steerer tube. Lowering a bike’s handlebars gives you low and aggressive bike geometry, with stiff and responsive steering. So it’s a straightforward way to cycle faster.