Timeline for answer to Tightening steerer expander/compressor and spacer positions with a carbon fork by Andrew Henle
Current License: CC BY-SA 4.0
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| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 27, 2019 at 0:27 | comment | added | Deleted User | I've been riding carbon forks for a long time. If a manufacturer told me the compression plug was needed to support the steer tube, I'd buy a different fork. What is "supporting" the inside of your carbon seatpost that your frame is clamped onto (with all your weight on it)? What is supporting the inside of your handlebars where they are being clamped by your stem? Believe whatever you like, but think closely about the the random junk people post on the internet. | |
| Jul 26, 2019 at 11:10 | comment | added | Vladimir F Героям слава | @DeletedUser I am not so sure youtube.com/watch?v=pBmpCaTFl_c | |
| Jul 25, 2019 at 18:20 | comment | added | Deleted User | @VladimirF It should not no. The steertube should be more than strong enough to withstand normal clamping forces on it's on. Additionally, due bolt length/stem design, etc, it would be hard to guarantee the expander plug will always be in the correct place to support the stem clam area. Move all spacers but one to the top of your steer to to drop your stem, but not need to cut your steertube and you'll see what I mean. | |
| Jul 23, 2019 at 17:07 | comment | added | Vladimir F Героям слава | So the steerer tube was cut 3.5 mm below the stem edge, +- on the bolt's upper edge. I lowered the stem by moving the 4mm spacer and will test how it rides. The outer edge of the gap on the clamp is still closed at the upper bolt though. | |
| Jul 23, 2019 at 15:22 | vote | accept | Vladimir F Героям слава | ||
| Jul 23, 2019 at 15:22 | comment | added | Vladimir F Героям слава | @DeletedUser Doesn't the expander support the structural integrity of the stem by pressing against the stem? If the bolt is removed, that won't work anymore, will it? | |
| Jul 23, 2019 at 14:32 | comment | added | Deleted User | You actually don't need the expander/compression nut OR the cap after your headset adjust has been done and the stem has been firmly affixed to the steer tube. Both are there to apply proper tension to the headset during the adjust. Afterwards, they serve no mechanical purpose. Most people leave them in place in case something happens and you need to adjust the headset or stem again. Strictly speaking, they are not needed. They give a bike a "cleaner" appearance and may hold on spacers above the stem (which also serve no purpose after the adjust). | |
| Jul 23, 2019 at 13:49 | history | answered | Andrew Henle | CC BY-SA 4.0 |