I believe Kevin at DK is working on a 1" bracket similar to this.
As I have mentioned in other posting I never liked the clearance issue with my 2017 Tri Glide (more common than folks think) with the swing arm and the exhaust ( large oversized weld on the 2017 models because of cat be moved back in header). I had to grind the weld down just to get the minimal clearances needed with the trike wheels on the ground with the 1.25" lift brackets installed, see pic. Also see pic with more clearance same spot wheels on the ground with the 1" lift brackets more clearance for sure. To some this clearance may not be no big deal but remember shocks work in both directions and at full extension I did not feel there was enough clearances with the 1.25" lift brackets. More of a chance of the swing arm hitting the exhaust in a more full extension situation with the trikes suspension. Also the 1" lift brackets are a lot easier to install you don't have to pry down against the exhaust to get them on like with the 1.25" brackets on the 2017 model Tri Glides.
The trike still looks and drives nice and still has the better steering feel. The muffler tips with stock mufflers and Pro Action rear shocks are still at around 7" of clearance at the tips a few 1/8' less than what I had with the 1.25" lift brackets. I also used the second hole in the 1" lift bracket to place the shocks a more of an angle for the better ride provided when rear shocks are at the more angled back position.
Ride Safe All,
Bill G