This is a stand supported by a 35 lb cast iron stand used for an 10' wide umbrella. It's more than ample to support a bike for repair.
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This is the shorter pvc extension.
This is the taller pvc extension.
Bar clamp holds bike bar, this detail was covered in my previous instructable.
Slope bar attachment
Another view of slope bar attachment. This configuration allows for sloping the bike to any ange.
Using alternate top attachment for slope or vertical bars.
All components for stand.
The base & steel tube attached to base for support.
Base & tube tilted over for view the bolt attachment to steel tube - this is the umbrella stand as purchased from retailer. The rust has no structural value.