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WARCRC > Basic Tech > Tech How-To and Reviews Tech Info: Pro/Con with running 2.2 tires on a scale truck

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Old 01-30-2017, 05:37 PM   #1
justinart24
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Default Tech Info: Pro/Con with running 2.2 tires on a scale truck

I always suggest to people to run 1.9” tires if there trying to build a scale truck. Running 2.2” tires will generally reduce your performance if the tires are not built around the truck properly.

Below are some tips I put together to better help you run 2.2 on a scale truck. Just a reminder, most scale bodies on the market are meant to run smaller 1.9” tires. Trying to run 2.2 tires on a scale truck can be frustrating to build around without have the body very high, reducing performance.

***2.2” Tire Overview***
The number 2.2 identifies the inner diameter of the tire and the outer diameter of the bead lock/wheel. 2.2” tires are generally 4.84” to 5.75”, depending on the manufacture. There are a lot of 2.2” tires out on the market now a days and there are plenty of different rubber compounds. In the 1:1 full size world the Mickey Thompson Baja Claw TTC tire is one of the larger tires available on the general work
https://www.mickeythompsontires.com/...em=BajaClawTTC

Below is a link to some of the tires I have researched and documented that are available on the market.
CLICK HERE>>> http://warcrc.net/forum/showthread.php?t=5982

***1.9” Tire “Out of the Box” Vehicles***
Most scale trucks available on the market have 1.9” tires. Popular scale body such as the Tamiya Hilux, Axial Honcho where designed to be used with 1.9” tires with the height of about 4.25”.


***2.2” Tire “Out of the Box” Vehicles***
There are a few scale trucks on the market that run 2.2” tires out of the box, such as the Axial Bomber, the Axial Wraith and etc. The Bomber and Wraith can run the larger 2.2” size tires because the front and rear of the vehicle is pinched in and have plenty of tire clearance.



***Tire-to-Body Rubbing/Clearance***
Depending on the scale body used, the larger 2.2” tire height will increase the possibility of the tire rubbing/contacting the body. To fix the tire-to-body rubbing issue with this common scale bodies, some builders will raise the body to compensate for the larger 2.2” tires. Putting 2.2” tires on any general scale chassis buy itself will raise the COG(Center of Gravity) and increase the possibly of the truck rolling over on its side when side hilling and also effect the ability to climb up a hill. When the builder raises the body to compensate for the tall tires, the COG problem is intensified.

(Sorry new folks, don't believe everything you see on YouTube. :) )




There are a few option you can do to get the body low...if your still focused on running tall 2.2. tires, so the truck is not so top heavy...


Option A: Fender Trimming (Con: Not super scale looking but effective.)


Option B: Pinch and Dovetail (Con: This can be lots of work)


Option C: Run a tube chassis with lots of tire clearance. (CON: It takes lot so skill to make a tuber)
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Last edited by justinart24; 02-06-2017 at 03:08 PM.
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Old 02-06-2017, 02:39 PM   #2
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Old 02-07-2017, 10:02 AM   #3
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Option D: use wider axle or axle widener to get tire clearance and bring the body down

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Old 02-07-2017, 11:16 AM   #4
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Quote:
Originally Posted by D440 View Post
Option D: use wider axle or axle widener to get tire clearance and bring the body down
D440
Wider axles like the AR60/Wraith axles with 2.2 tires will still run into tire-to-body rubbing, in that case you will still have to trim the fenders or run the body high effecting performance as well.

I don't have wider axles on the list because SORRCA gates are 13" wide. Also, axle wideners increase scrub steer(effecting performance) and wideners are usually a major weak point due to the way the wheels mounts on the hub.
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Old 02-07-2017, 12:08 PM   #5
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Quote:
Originally Posted by justinart24 View Post
Wider axles like the AR60/Wraith axles with 2.2 tires will still run into tire-to-body rubbing, in that case you will still have to trim the fenders or run the body high effecting performance as well.

I don't have wider axles on the list because SORRCA gates are 13" wide. Also, axle wideners increase scrub steer(effecting performance) and wideners are usually a major weak point due to the way the wheels mounts on the hub.
Ah right, agree. Yep, wideners sucks.

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