dimond s cromo sub frame

[BigFish BC]

well my sub frame is bent & it is gusseted to so not sure why it bent never hit anything real hard, but skies are almost a inch out & one is towed out guess thats the one that took the hit.anyone running one of the dimond s cromo sub frames have any input on them.just dont want to buy another stock one gusset it & have a bent one again would rather just do it once.

 

[off trail mike]

BFBC

Grizztracks has a gusset kit for the Nytro's that improves subframe strength to the point that bending becomes a non issue. If you notice this is mostly a problem with the 08's. I run a '10 and 11 Nytro and everthing is still straight.....and I have banged it off a few "very" solid objects over the past 2 years. The newer Nytros are much better.

Diamond S is great, but if it was me, I'd get grizztracks' kit and use the balance of the money to lighten the beast.

OTM.

 

[grizztracks]

I've had several reports of bent subframes even with the newest frames. I wouldn't install a new frame without adding a few chromoly gussets.
http://s589.photobucket.com/albums/ss337/grizztracks/Nytro subframe gusset/

 

[BigFish BC]

how much weight does it add & what is the cost?mine was gusseted not your kit but a home made one still cant beleave its bent

 

[grizztracks]

Any pictures of your gussets and bent frame? The gussets I've designed are just over 1 lb. They are made out of 10 ga chromoly steel (4130) and are easily welded in. Over the past several years I've helped out many Nytro owners with these gussets and so far I've had no reports of bent frames.

PM or email me if you need additional info: grizztracks@roadrunner.com

 

[M5-]

Lets face it its a $hitty design from the crap bushings to the way the arms mount to the sled. I braced up my Nypex subframe simmilar to what is shown in these pics only I added a few more gussets. The way I figure it is a strong Cromo a-arm is the last thing you want on one of these sleds cause it just sends all the force to the subframe. A guy would be better off with thin wall disposable a arms. I've bent at least 3 of the subframes so far. Just ride it bent it makes no difference and when you hit something on the other side it'll fix itself.

M5

 

[roughrider99]

Lets face it its a $hitty design from the crap bushings to the way the arms mount to the sled. I braced up my Nypex subframe simmilar to what is shown in these pics only I added a few more gussets. The way I figure it is a strong Cromo a-arm is the last thing you want on one of these sleds cause it just sends all the force to the subframe. A guy would be better off with thin wall disposable a arms. I've bent at least 3 of the subframes so far. Just ride it bent it makes no difference and when you hit something on the other side it'll fix itself.

M5

Would there be any a arms that would work best with nytro subframe strength wise? Titanium arms would prolly give before subframe? I'd rather keep spare arms than spare subframes

 

[pelon]

Would there be any a arms that would work best with nytro subframe strength wise? Titanium arms would prolly give before subframe? I'd rather keep spare arms than spare subframes

I guess that depends on your titanium arm builder! I prefer titanium over chromoly any day.

 

[sepeterson]

I ran the chromo. sub frame and Ti a arms. Sub frame was light but missing alot of mounting holes/tabs. Broke 3 sets of lower arms. He stood behind his work until the 3rd set.

 

[Iceman56]

How do you tell when the subframe is bent? Where does it bend?

 

[FloridaBoy22]

How do you tell when the subframe is bent? Where does it bend?

I noticed mine loading it on the trailer. The right ski was about 4 inches forward of the left! My shocks were also rubbing my a-arms.

 

[BigFish BC]

I noticed mine loading it on the trailer. The right ski was about 4 inches forward of the left! My shocks were also rubbing my a-arms.

wow i thought 1 inch was bad

 

[Iceman56]

So if one of your ski's is further ahead then the other there's a good chance your sub frame is bent? There anything to else to look for to make sure? I am thinking mine may be bent as well

 

[wilmot]

Look at the space between your shocks and A-arms. If they are not in the center your subframe is twisted.

 

[grizztracks]

on the 09 and newer sleds look at the center gusset between the lower a-arms:
http://s589.photobucket.com/albums/ss337/grizztracks/Nytro subframe gusset/#!cpZZ1QQtppZZ20

 

[sledheadd]

I have had one in my sled since 08 with no problems other then a few missing mounting tabs. I have since busted 2 a arms with no damage to sub frame.