Seems strange to me too! But, that is what it says! So, thats what I do!

 

http://www.rzrforums.net/rzr-xp-900/86266-xp-wheel-torque.html

 

X2 There has been a lot of discussion on this topic. Torque plus 90 degrees is a common practice. Tightening by angle rather than torque removes the error that is produced by friction in the threads.

 

When tightening the lug nuts after the initial 30ft pounds, several of the lug nuts felt like they would actually break if I went 90 degrees. This is why I asked on this forum what others do.

I think I will torque to ~ 60 Ft pounds in the future.

 

So you can see what happens Torque them to 30 lbs. Then set the torque wrench to 60 LBS. Put the torque wrench on the bolt so you could go 90 degrees. When you get to 60 lbs see who close you are to 90 degrees. Let us know your findings.

 

After torquing to 30ft pounds:

1. 60 ft pounds @ ~ +35 degrees
2. 70 ft pounds @ ~ +45 degrees
3. 75 ft pounds @ ~ +60 degrees
4. 90 ft pounds @ ~ +90 degrees

I checked the wheels installed by the dealer ...they were at 85 Ft pounds.
When I try to go to 90 ft pounds it feels like the studs are stretching. I took the wheel off and it looks like the lug nut starts to make an impression into the aluminin rim causing an inaccurate torque reading. The stud threads look good and the lug nut threads look good. I was afraid I started to strip the threads.

Based upon these findings, I will not go over 75 ft pounds.....just doesn't feel right going to 90.

 

Is this only on 2013 or th 2012 also

 

I torque my alum wheels to 90. Steel wheel are a different value. I totally understand what you're saying about feeling your getting to the breaking point. I have only broken one stud. I was in a hurry and wasn't easing up to the 90 lbs point. I'm sure I over shot and as the say, Haste makes waste. I think there is to much emphasizes put on torque. Put them on tight enough they don't come off and go for it.