Timeline for Where can I get a new steer tube or 1 1/8" 6061 Aluminum Rod Stock?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 2, 2012 at 11:56 | comment | added | zenbike | Strongest temper can also mean more brittle. I'm not saying it is, in this case, not the correct material, I'm saying the steerer tube is designed to use one particular material. If you are not sure that you are using the same material, then you can't be sure that the fork will react as intended. Since you are (I think) swapping a steel steerer for an alloy steerer, that goes double. And generally Alloy steerer tubes are reinforced with internal butting at clamping points and stress points. | |
| Apr 1, 2012 at 21:23 | comment | added | Ehryk | The Antigravity forks have that collar as a separate piece surrounding the 1.125" tube, which then clamps into the crown. How else could it be reinforced? T6 is the strongest temper for 6061 aluminum, en.wikipedia.org/wiki/6061_aluminium_alloy#6061-T6 . | |
| Apr 1, 2012 at 9:45 | comment | added | zenbike | I don't have your fork in front of me, so I can't be certain, but most alloy steerer tubes are reinforced heavily at the point that they enter the fork, and most steerer tubes have a "collar" of metal machined on the bottom end, where the fork crown rests. Also, most alloy steerer tubes are tempered to resist the forces required of them in a bicycle environment. Material choice is not just about size. You may be fine. But have you ever seen someone whose fork separated from his bike at high speed? I have. He wasn't pretty, anymore. | |
| Apr 1, 2012 at 6:14 | comment | added | Ehryk | 3) I already ordered it, 1.125" OD .995" ID, and plan on doing the conversion. I'll post results/pictures when it's done. | |
| Apr 1, 2012 at 6:14 | comment | added | Ehryk | 2) What would be the problem with replacing it with aluminum? I know they use aluminum steer tubes with 1.125" OD and 1" ID, so the strength of 6061 aluminum should be adequate. | |
| Apr 1, 2012 at 6:11 | comment | added | Ehryk | 1) What shaping would there be? It's 1.125" from bottom to top? | |
| Apr 1, 2012 at 3:45 | history | answered | zenbike | CC BY-SA 3.0 |