I need to know where to get these things…
Aluminum/steel tubing with an ID of 25.4mm
Steel tubing with an OD of 25.4mm
and also what tool is used to make that cut out right at the top of the neck on a uni to previde flex in the tube for proper tighting of the post.
Re: Some Questions…
Try here http://www.shapirosupply.com/
A Drill and a dremel work great. The drill gives a round bottom to the slot. The dremel with a cutting wheel cuts the slot nicely.
Make sure that you file the inside well to get rid of any burrs. Otherwise you’ll end up jamming the seat post.