Nytro Mtx Approach Angle 2008-2009 vs 2010

[murph]

Looking for as many mechanical advantages as I can get to make up for my lack of riding skills.

I have a 2009 Nytro MTX and still have a tendency to occasionally trench it. Granted my skills are still lacking, but it seems that this is not a problem exclusive to beginners.

I understand the concept that a flatter approach angle helps the sled get up and stay up on top of the snow.

In the "2010 Nytro MTX changes post" I found this comment:

My guess on the attack angle is that they lengthed the front arm by about 1.5 - 2 " then moved the start of the rail curve back and adjusted the front mounting point of the torque arm, which is exactly what you get by putting a Cat skid in your Nytro. Funny thing is Cat figured that out in 03. Let the revolution continue.

Rx1M5

My question is if running a Timbersled Mtn Tamer gives you enough adjustability to alter the stock approach angle (i.e with changing the rails) or if something more radical like the aforementioned Cat skid swap is required?

Also, in theory, tightening the limiter straps down should decrease the approach angle but will increase ski pressure--effectively make the front heavier....? Can this method be countered by increasing the transfer amount?....

Any thoughts?....

A little knowledge is a dangerous thing.....


Thanks for the input.

 

[akvector]

I feel tightening your limiter straps would not be worth it because you will then be nose diving in the snow. Changing the transfer would possibly compensate when on the throttle but as soon as you let off you would be nose diving again.

Mine is still completely stock and I do not think it trenches all that bad. My conclusion is to get a different as the ride of this one sucks. I wish yamaha would have done it right the first time.

 

[Rx1M5]

There's no saving that stock skid it's a POS, even stubborn old Yamaha figured that one out finally (2010). Go with a Cat/Timbersled skid or I think an 09 153 Cat Float skid running a 156 track would be perfect and way cheaper than a Timbersled version.

Rx1M5

 

[murph]

I see what you mean about the Cat skid:
http://www.arctic-cat.com/snow/chassis-floatskid.asp

looks very similar to the Timbersled setup. Wonder what the cost/ weight issues are on the Artic Cat compared to the Timbersled. There is a certain convenience factor of bolting up a Timbersled versus trying to figure out the AC mounting points

Are the Timbersled front arms longer than stock so that when you match them up with Cat rails you do get a shallower approach angle?

 

[Rx1M5]

If you haven't seen it here is a pic of My Nytro with a Cat geometry Timbersled skid in it. I now have Iceage rails as the Cat rails which in this pic are 07 model cracked and pretzeled. Never seen anything like that before. Supposedly the 09 rails are stronger, but the 7000 series Iceage rails are the bomb. The tunnel mounting positions are different than stock but doable. This setup is awesome. My sled from stock to this is like 2 different sleds.

Rx1M5

 

[akvector]

there is no wat to put the cat skid in and keep the stock length though is there? Maybe a 141 with extensions or maybe have Ice age custom make rails??

 

[akvector]

i really need spell check!!!!