Rc crawler tire size difference

[Addict Rc]

Quick question what’s the best tire size for comp crawlers? (1-10 scale) 1.9, 1.5 or 2.2? I have the TRX4 Sport but will be getting a cliffhanger body and a custom wrap for it and RCAWD is sponsoring me with some parts that come end of the month

 

[Doom!]

For your TRX4 sport I would go with 1.9

 

[islandlife]

4.75” tall 1.9

 

[Addict Rc]

For your TRX4 sport I would go with 1.9

Ok I didn’t know if 1.5 would be better or not for comp I kinda knew 2.2 whould be too big

 

[Tunedfrog]

If you plan on going bull blown competition using 2.2 tires, I thought I read somewhere that you won' be allowed to use rear steering.
Somebody please correct me if I'm wrong.
I'm a huge fan of 2.2 but I don't plan on any competitions, and to me they look much better.

 

[Doom!]

Different classes have different rules. @Iowa crawler would probably be the most knowledgeable on the rules.

 

[Iowa crawler]

The rules changed after 2022.

I think this is the new rule sheet. Double check

But anytime you compete in anything get the full rules sheet or booklet and read it completely.


https://thecrawlspaceco.com/sorrca-rules

 

[Addict Rc]

Thanks to you all, I just didn’t know if tire size makes the truck more capable or less I will ask my local hobby shop to make sure the rules don’t differ

 

[Iowa crawler]

The bigger tires go over obstacles better than small tires. Small tires are lighter and spin faster. You can’t get a big giant tire to move under a body or turn as sharp as a small tire. That is of corse giver the same suspension. It’s a real test and tune thing.
With portals some times the smaller rims are a problem. So 2.2 rims 1.9 tires are a popular choice. Personally I have gotten my best performance from 1.9 with good foams. But the terrain makes the difference.

 

[Addict Rc]

The bigger tires go over obstacles better than small tires. Small tires are lighter and spin faster. You can’t get a big giant tire to move under a body or turn as sharp as a small tire. That is of corse giver the same suspension. It’s a real test and tune thing.
With portals some times the smaller rims are a problem. So 2.2 rims 1.9 tires are a popular choice. Personally I have gotten my best performance from 1.9 with good foams. But the terrain makes the difference.

Ok, does anyone run the flubber stuffers?