Spindles and Tire Size

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ChasingSand

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On SU Sand Pro I am currently running a SU King Kong spindle with a 33 Baja Pro shaved tire. I am looking to go to a 10.75 tire. Does anyone have experiencing running this combo? My car only weighs about 2100 LBS with me in it but looking for real world feedback on this combo.

 
Carwashguru said:
On SU Sand Pro I am currently running a SU King Kong spindle with a 33 Baja Pro shaved tire. I am looking to go to a 10.75 tire. Does anyone have experiencing running this combo? My car only weighs about 2100 LBS with me in it but looking for real world feedback on this combo.
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That tire is too big for a king kong spindle. You need a 2" hollow. 

 
33 Baja and a 10.75 are almost the same size and weight so if they work for your current tire then..... That being said are your spindles 10 years old might be time for new and if you are doing new might as well upgrade.

 
Whipsandshyt said:
33 Baja and a 10.75 are almost the same size and weight so if they work for your current tire then..... That being said are your spindles 10 years old might be time for new and if you are doing new might as well upgrade.
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So spindles are only two seasons old, but after looking into it more will probably not move forward with the 10.75's as I was hoping for a nice jump in size.

 
After building and converting over 100 spindles,  the issue and it was on the last site is that the King Kong will not work over time, 

Main reason and difference from a combo to a king kong

  • combo on big tires will break the spindle 
  • king kong will not break the spindle, BUT, it has roughly the same mounting mass near the bearing, so the welds break off, not enough weld surface to hold that size tire.

On a combo and king Kong it is around 1.5 -1.7''  so around 5.5'' of welding surface on the outside, 

2'' hollow is stronger on the shaft due to its size,  but the mounting flange is around 2.5 - 3'' in diameter to the mounting surface, so almost 9.5'' of welding surface, 

King Kong waist of money,  

 
My Su is running King Kong w/ that tire for about 5 years now no problem. Before that it had combos and I put that tire on the old rims. Would break the welds all the time on the rim. Never had a problem with the King Kong spindles. I run the same tire on a Buckshot and switched to 2" so will see how that goes.

 
Personally, I don't think the tire size has as much to do with breaking spindles as driving style.

Sure it does to a degree, but I ran combo spindles for 17 years with a 35" Baja tire.

My first set ran 12 years with no issues, but I didn't wheelie or jump very often.

Replaced those just due to age.

Started driving a lot harder, more power, lots more wheelies, jumps etc.

Broke a combo after 4 years.

I moved to 2" Hollows this summer......  and more power.  :)

 
lincster said:
Personally, I don't think the tire size has as much to do with breaking spindles as driving style.

Sure it does to a degree, but I ran combo spindles for 17 years with a 35" Baja tire.

My first set ran 12 years with no issues, but I didn't wheelie or jump very often.

Replaced those just due to age.

Started driving a lot harder, more power, lots more wheelies, jumps etc.

Broke a combo after 4 years.

I moved to 2" Hollows this summer......  and more power.  :)
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WOW! So you're the one.

 
lincster said:
, I don't think the tire size has as much to do with breaking spindles as driving style
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Agree. One car in our group has run 10.75's on combo spindles for years. They did finally break, both, and kind of funny, within a mile of each other. Luckily we were able to still drive car back to camp. And really lucky camp wasn't another 100 yards away. 

 
Running low psi up front like 6-8lbs helps take the load off as well as biting better into the sand.

 
If you just stay on Sand Highway, stopping only at the drags, Duner's Diner and maybe an occasional trip from the washes into Oldsmobile, you will be fine! 

 
Jammer75 said:
Running low psi up front like 6-8lbs helps take the load off as well as biting better into the sand.
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I would not do that,  running low air pressure can result in a bent rim,  make the suspension work correctly and keep the air pressure up to protect the rims,  

 
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