Originally Posted by
Big Lew
Are there any concerns about welding small aluminum flat metal bar extensions to the ends of the rear forks of an aluminum-framed bike in order to provide more attachments for sturdy racks or for trailer rigging? Are most aluminum frames actually aluminum, or alloy, and would welding pure aluminum bar be compatible and a good bond?
Most aluminum frames are alloy typically 6061 or something similar. Pure aluminum is very soft. I bet the bars are a 2000 or 3000 series. If the person welding really knows what they are doing it should be fine.
Aaron