Trike front end

[GordonBH]

Hi all,

I'm posting this on behalf of Knockdolian as he is having PC issues.

"Hi all, after doing loads of reading and going through old posts I've decided that all I really need to improve handling of my trike is keep the 30 degree headstock, and use 5 degree trees to reduce the trail to 1.5" more in keeping with the latest factory trikes. I can get trees made for about 400 but saw these on eBay ebay number 171998372570.
Has anybody seen these before and know anything about the adjustable rake. Sorry if I'm becoming boring but with so many options my head is up my ass (fanny)
Thanks"