If you click on the words forks on this page, you'll see ít's a link to a page of steel steerered 1" forks. For threadless applications, it's not the breaking strength that's so critical but the flex. Al steerered threadless forks Í've tried flexed so much that they wedged the headset loose. A threadless stem, headset and steel steerer fork should be both lighter and stiffer than a threaded steerer Al fork, headset and quill stem.