Brass and stainless risers
I bought 3 sets of risers before deciding I didn't like any of them so I decided to make a set of brass risers for the springer I was using. After making the brass risers I had to make a set of adapters to mate the risers to the top tree.
I didn't like the way the way the other risers have a "hex" to tighten the riser or the ones on a stock rubber mounted riser(too fat). The way mine is tighten is by two holes in the adapter and tighten by a special socket with two internal pegs.
The adapters were to be machined from mild steel and chromed later, but chose stainless 304 instead as it polishes nicely and no chroming cost. SS is a bitch to machine on a old lathe and takes twice and long for me to work with. Also after making the SS adapters the mild steel to tree didn't look right so back to the work shop and make one out of SS, besides the mild steel one was slotted wrong.
Fortunately we has a "Metal Supermarkets" close by and we can buy almost any type of metal in any quantity , no minimum and the guys are super nice.