Before I start I have to say that I have replaced my bar with aluminum one from OTR (Lucas brand)
The installed Kaoko cruise control if for XTZ sourced from e-bay (sorry lost the link)

https://www.flickr.com/photos/136213...posted-public/
This is the thing as it came out of the package

https://www.flickr.com/photos/136213...posted-public/
The usage manual/instruction

https://www.flickr.com/photos/136213...posted-public/
Tools needed and used 16 mm / thread 1,5 mm

https://www.flickr.com/photos/136213...posted-public/
Work in progress

https://www.flickr.com/photos/136213...posted-public/
Ready to install

https://www.flickr.com/photos/136213...posted-public/
https://www.flickr.com/photos/136213...posted-public/
Used some of this

https://www.flickr.com/photos/136213...posted-public/
Item installed

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that is how i feel about my XTR
Mods so far:
Hyperpro front springs; Hyperpro rear shock spring; modified air box; LED tail light; LED indicators + new relay; YZ pegs; Lucas aluminum bar; brisk spark plug; snorkel removed; DNA stage 1; second hand DynoJet O2 mod; crash bars; front and rear steel braided brake lines; soft EBC brake pads; mitas 07 tyres, 2in1 Metal Mule exhaust, Blocked AIS, tall OEM screen, OTR bash plate