I tried to find the thread on nyroc's forum about the caster fix but I could not. Here is a post I made on this forum quite a while ago about it.

There have been alot of complaints about the steering of the King quad. It is the lightest steering quad I have ever been on. I personally never had a problem with the steering but have read alot of reports of twitchiness at high speed (darting around) and especially when going down hill reports of the handle bars getting ripped out of your hand and going "full lock" to one side or the other. I had never experienced this personally until last week. While going slow down a very rocky trail I hit the rong thing and they did indeed get ripped to the left and I came to an abrubt stop. When you said you do technical riding down steep trails I thought you might want to know this complaint.
On this forum this has been discussed under the thread "king quad worst handeling quad ever"?
On Nyroc's forum it has been discussed in much greater detail. There are also those using steering stabilizers that seem to help. But the best fix IMO has been done by a guy named demijohn on Nyroc's forum. He worked in the steering field on cars and measured the amout of caster on the king quad and found it to be 1.6 degrees positive caster. Most quads are 4 degrees and up. The lower caster makes for the light feeling steering the quad has but it could also be the reason for the twitchy and full lock steering. He has come up with a fix and explains how to do it in detail. Anyway all who have done it say it is much better.
Check out nyrocs forum and make a informed decision.
I am not telling you this to steer you away from getting a King, I am very happy with mine. Infact I believe its the best all round quad out except for possibly the Bombardier 800.


Topgun 1 is on this forum and is very knowledgeable, he is also on Nyroc's and knows how to do the caster fix. Im sure could explain how to do it alot better than I. Sorry to post a novel.

 

Can you put a steering stabilizer on a KQ?? I know mine on my KFX400 makes a world of difference hitting rocks and stumps at ~40MPH

 

I believe I read somewhere that a Z400 stablizer will fit.

 

Yes they will fit with a bit of grinding off the collar.

 

I doubt I will be ever riding a utility quad again! They just don't handle as well as sport quads. I am selling my utes and getting dirt bikes for mountain technical trail ridiing. Will definitely still keep the sport bikes for the desert though.

Which would you rather have on top of you in a crash (multiple choice question): a 600+ pound lard a$$ utility, a 350 pound sport quad, or a 225 pound dirt bike????