Its called an EZ Steer, a replacement set of yokes( known as triple trees in the USA)which has a raked angle of, usually, 6 degrees more than the standard oem yokes. What that means is that the front wheel spindle is moved forward by about 2", thus reducing the trail, thus making the steering lighter.
Raked yokes are usually fitted for one, or both, of the following reasons: they allow the the original front end, forks and fender, etc to be kept, thereby keeping the original looks. Thats why they're popular on Goldwing and Harley sidecar outfits and trikes. The other, often the main, reason is that they are about a 3rd of the cost of leading links, and ,in truth, they do about a 3rd of what L/Ls do!
If anyone should tell you that raked yokes are as good, or better, than L/Ls, then they are talking crap. Look at any racing sidecar outfit, grass track, speedway, sidecarX and road racing, you wont find an outfit in any of those sports that use raked yokes, and for very good reasons.