AND there are harder more expensive Aluminum alloys .. 7075-T6 (Ergal) has to be Machined , where the softer alloys can be die cut in a stamping Press so a Lower Cost.
Bike on a trainer stand what anything weighs really does not Matter.. unless you have to haul both Upstairs a Lot.
Last edited by fietsbob; 03-11-15 at 02:22 PM.