RCCrawler Forums

Grizzly4x4

Here is a list of some common questions about building a 2.2 Clod with links to examples. Much of this applies to big Clods as well.

Got a suggestion for something that should be added to the list (servo's you've used, ESC's you've used, chassi's, tips)? Please post it up here:
http://www.rccrawler.com/forum/showt...156#post380156


How do I shave the axles:
Shaving the axles on a 2.2 Clod is a must for any decent ground clearance.
Clod Tech: Shaving Clod Axles


How do I mount 2.2 wheels on a Clod.
For a narrower width and to meet the RCC 2.2 class 12.5" width limit you need to run a
wheel made for the rear of a Traxxas electric Stampede/Rustler or the front of a
Traxxas nitro Stampede/Rustler.
If you use Traxxas wheels you will need a spacer under the wheel nut to keep the wheel tight, with RPM wheels you wont need the spacer.
rounding hexes with 2.2's

You can run a wheel made for the front of a Traxxas electric Stampede/Rustler or the
rear of a Traxxas nitro Stampede/Rustler for a wider stance but this makes the width
almost too much for a 5" tall tire. I would recommend a 5.5" tall tire for this.


Check out these wheels.
http://www.rpmrcproducts.com/product...ruck/index.htm
http://rc4wd.com/shop/product_info.p...f92c5c3ba89dbc
http://www2.towerhobbies.com/cgi-bin...=++&search3=Go

These wheels will make your 2.2 Clod wide but they are nice.
http://www.rccrawler.com/forum/showthread.php?t=38978


How do I narrow 2.2 wheels:
I would recommend only narrowing the wheel by cutting off the outer bead to help narrow the overall width; but double narrowing is certainly an option.
http://www.rccrawler.com/narrow.htm

This thread shows several methods of narrowing as well as how to mount Rock Rings.
Narrowing 2.2 wheels & DP Fab Rock Rings

How to make your own beadlocks:
How-To: Functional 2.2 Beadlocks for under $30


What tires can I run on a 2.2 Clod:
Currently the best choice is the Proline Masher 2000 for 2.2 wheels.

The Proline 2.2 Moab is another good choice but is much narrower and can cause the diffs to hang on the rocks more.
http://www.prolineracing.com/proline.html

Imex makes some great tires that are 5.5" tall but do not grip as well as the
Prolines. The smaller Imex tires look good but are short and can cause diff clearance problems on the rocks.
http://www.imexrc.com/2.2TIRES_NEW.htm
In my review of the All-T's I found them to work as well as the Mashers in the test situation but as I found out trying them in competitions, the Proline's have better traction. I still run All-Ts because of the look and they do work good, but just not as good.
Tire Test: Imex 2.2 All-T

Of course, being the maniacs they are, the ORCRC guys have glued tread from Proline tires on the Imex Red Rock tires to get both good traction and the extra height. This is not a cheap proposition though.
Noob with a CLod in my hands....


Should I use foam:
I personally prefer to use foam especially with the weight of Clod axles. I use a 4" tall foam from Proline and I narrow it by cutting 1/3 the width off when used with a single narrow wheel and Masher 2000 tires. With a double narrow wheel I cut the foam in half.
http://www2.towerhobbies.com/cgi-bin...=++&search3=Go

The foam from a Masher 2000 fits real well in a Imex All-T tire.
Here is a good thread on foam cutting:
The 2.2 MOAB Foam thread

The Utah guys prefered not to use foam in their 2.2 Clods and their rigs work great so I can't say there is anything wrong with not using foam. Double narrowed wheels and Masher 2000's made for excellent turning compared to single narrowed Masher 2000's with no foam though.


What wheelbase should I run with a 2.2 Clod:
For competition you cannot run over 12.5" WB. For a basher you can run a little more.
I like 13.5" - 14" when using the Imex 5.5" tall tires, on my first built I used about 11.75" for a scale fit.
Some examples of 2.2 Clods with different tires and wheelbases.
The Wild Oats Clone
Noob with a CLod in my hands....
The Duke 2.2: Semi-scale Clod Crawler
The Duke 2.2: Semi-scale Clod Crawler
a few pics of my new 2.2" comp rig
Scale 2.2 Clod crawler
My New 2.2 Clod Crawler, Kerbesäge


What servo should I run:
I would recommend a servo with at least 133 oz-in of torque.
A popular choice is the Hitec HS-645MG or HS-945MG Analog. My personal favorite is the HS-5645MG digital for a good compromise between torque and battery drain. The more power a servo has the more drain it puts on your battery and the more strain on you BEC.
http://www.hitecrcd.com/homepage/product_fs.htm

I have tried the Hobbico CS-70MG but found it to strip gears very easily and had marginal torque.
http://www.hobbico.com/accys/hcam1000.html

What speed control (ESC) should I run:
I still use my Novak Super Rooster or Rooster. I love them. You can run a single HS-5645MG on the Rooster without overloading the BEC but it wont really handle anything stronger than that without a RX battery pack. These are discontinued now though.

Some other choices:
The Tekin rebel2:
http://www.teamtekin.com/Brushed%20ESC.asp

The VR16 Moped:
Moped ESC

A list of ESC with specs.
Heres a list of reversable ESC's