R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

    Hide Wikipost
Old 10-24-2016, 08:36 AM   -   Wikipost
R/C Tech Forums Thread Wiki: 1/12 forum
Please read: This is a community-maintained wiki post containing the most important information from this thread. You may edit the Wiki once you have been a member for 90 days and have made 90 posts.
Last edit by: Skiddins
This is a place to share knowledge related to 1/12th scale racing. It is not to be used for conversations.

Click links to go to manufacturer product page. If any are missing please add them!

Pre-mounted tires readily available in the US:
Pre-mounted tires readily available in the Europe:
  • Hot Race ??

Gluing your own donuts:
https://www.youtube.com/watch?v=hm7z1rz-74s - Special thanks to Edward Pickering!
Truing tires:
https://www.youtube.com/watch?v=8wqHOLWq6Uc - Special thanks to Edward Pickering!

The following information came from HERE, with some editing and information added. Thanks Christian!


BSR, CRC, Jaco:
Pro One is no longer selling to the public, but it and the brands above are all mounted by BSR and use the same foam. The nomenclature of the BSR vs Jaco/CRC is a little different in a few instances but is otherwise the same. The BSR foam consists of three families, and can be identifed as synthetics, naturals, and blends.

Synthetics - The old school, light weight, easy to true "dry feeling" tires. These include tires like CRC/Jaco Yellow (BSR White), Black, Gray, etc. These tires offer the highest wear rate and lowest grip. Many racers continue to use these nder high bite conditions.

Naturals - These tires are usually the best alternative for low bite and asphalt. They include Pink, Magenta, Double Pink, Lilac (BSR Team Purple), Purple, and other tires. These tires provide a ton of grip, but tend to get sticky in high bite conditions. This rubber does not wear as easily, and the cars will pick up gunk and fibers from the carpet under most high bite conditions. This is especially bad if the humidity is high.

Blends - These are the tires most people run today. They were initially called "JFT foam" by some, as it was believed that the tires were the same as the JFT tires. We can divide the blends further into two groups: high rubber and low rubber content. The high rubber would be the new rear Orange and Red from the BSR family, and the low rubber would be the Green and Blue varieties. When, asked about the difference, John Foister from BSR Tires said they came from the same "family" of foam, but they offered different grip. According to John, the Green/Blue has more bite than Orange/Red, but from track testing Oranges offer more bite than Green (being equivalent to in hardness) when the grip is high and absolutely no grip when it is lower. The Orange foam has a denser pore structure and the tire is not as prone to chunking. It is also important to note is that BSR Blue rears are not the same as the BSR Blue fronts!

JFT stands for Japan Foam Tire. They started the new wave of foam tires we are all using now (Blue/Blu, Green/Greene, Dbl Blue, etc). These tires are a little different than the BSR tire family, but work in very similar conditions. They offers four varieties A (asphalt), C (carpet), S (???), and R (???). This does not mean that those types only work on that surface, but this is what they recommend.

JFT uses the same foam for fronts and rears if the color is the same.

A: Used on asphalt, considered close to the natural rubber variety and are named consistently with other natural tires.
C: Used on carpet, considered a blend.
S: Used on carpet?, tires are ???
R: Used on carpet?, tires are ???

For setup, the JFT foam seem to generate more bite than the BSR, therefore the car tends to be a little more aggressive.

Ulti is another Japanese brand that offers an array of compounds. They have their own way of rating tires, and are difficult to equate to other brands. They have 4 different varieties, each in varying degrees of hardness.

J: High rubber content tire, similar to Pink/ Magenta. Soft would be close to a pink. These offer the most bite and are great for asphalt/carpet front tire. (J hard being very popular)
X: "Balanced" blend, similar to JFT Blue/ Green. Soft is equivalent to Green, medium to Blue in hardness. Great for carpet!
Y: High synthetic blend with lower grip, and is not a very popular variety.
Z: A very expensive "special" foam that is supposed to be magic on asphalt. Only make it in soft shore.
European tires:
There are many great European foam tire brands that use their own types of foam, as well as traditional foams. SOmeone with more knowledge about them will need to fill this in!

Tire Diameter:
If you are racing on carpet, you have to evaluate how much grip your track has. If your track is low to medium grip, you can run bigger tires. If you are on higher bite you have to cut them smaller, there is simply no way around it. Bigger tires are needed for asphalt, especially in the rear. The larger tires provide much needed lateral bite.

Carpet (mm):
Low - Medium Bite
Front: 42.0 - 42.5
Rear: 42.5 - 43.00
Medium - High Bite
Front: 40.5 - 41.0
Rear: 41.5 - 42.0
Big Race
Front: 39.5 - 40.0
Rear: 40.5 - 41.0
Asphalt (mm):
Parking Lot
Front: 43.0 - 44.0
Rear: 44.0 - 45.0
Prepped High Bite
Front: 42.0 - 43.0
Rear: 43.0 - 44.0

Tire Saucing:
Most facilities have moved towards odorless traction additives such as SXT. Some of additives evaporate very quickly and some do not. This seems to be something that is also dependent on tire compound and ambient temperature. For example, saucing a Green compound seems like it never dries, especially when tjhe temperature is lower. We have found that wiping the tires off 15 minutes before we go run allows the sauce to cure, which makes the car come in much quicker with Green rears. Blue compounds on the other hand, do fine when wiped off right before hitting the track.

Saucing half front and full rear is a good initial starting point. If the front of the car is too agressive you can sauce les than half, or for a shorter amount of time.
Tire Fuzzing:
In conditions of increasing grip, foam tires will somewtimes get sticky and pick up fuzz and debris from the track. This is highly dependent on the rubber sedan tire that is being run at your local track and the compound/ type of foam you are running on you car. The softer the sedan tire and the harder/higher rubber content in your foam tire, trouble with fuzzing seems more likely to occur.

There are ways to get around fuzzing under most conditions, and usually involves the selection of the correct foam compound. The more fuzz you get, the softer/lower rubber content you want to run.

Problem: Car fuzzes with Lilac/Team Purple fronts and car starts pushing.
Solution: Use a softer front tire and or different family of foam. Replace it with Blue or Double Blue front.

Problem: Car loses rear bite 6 minutes into the run. Blue rear tires look almost clean but have small carpet hairs.
Solution: Use Green rear tires. The softer compound wears instead of getting sticky, minimizing fuzz.

Tire Selection:
Starting out, pick 2 tire compounds for the front and rear. The following should have you covered 99% of the time.

Front - Green and Blue (BSR) or Green and Light Blue (JFT)
Rear - Blue and Double Blue (BSR) or Blue and Dark Blue (JFT)

You may wonder about other compounds out there and if they might be better, trust me, they probably won't be. Even if there are other tires that can be as fast, the synthetic family wears out really fast and the high natural rubber will probably fuzz on you over an 8 minute run. The blends family seems to be the most versatile foam type available today. They last awhile, and sticking to them will make your process of tire selection simpler.
Tire Charts:



JFT (Japan Foam Tire)


Enneti (Xceed)

As of now, ROAR is staying 1S (3.7V nominal; 4.2V fully charged) for 1/12. There are many 1S ESC's with a built in BEC so nothing else is required to power the receiver and servo.

If you don't want to lock yourself into a 1S specific ESC, you do have other options! It is possible to use your 2S ESC without a booster or receiver pack, and the ESC simply supplies the lower voltage. If that does not appeal to you, you will need to use an Rx pack or booster. The Rx pack and booster will both supply the receiver with a higher voltage than the 1S pack.


If you choose to use a voltage booster, it works exactly how it sounds. Instead of plugging the ESC into the receiver, it plugs into the booster, and the booster plug goes to the ESC, supplying the higher voltage.

If there are any missing please add them!!

If anyone would like a need for a chart comparing the ESC's specs PM fenton06 and I'll get one made and put in here!
Voltage Boosters:
If there are any missing please add them!


Print Wikipost

Thread Tools Search this Thread
Old 11-03-2014, 02:13 AM   #41596
Tech Apprentice
Join Date: Mar 2014
Posts: 93


I'm looking for a new tyre truer.
Which one do You use with which adapter an cutting tool?
I'm not willing to buy a new Hudy one to expensive for my budget.
Thanks for your input.

toroloco is offline   Reply With Quote
Old 11-03-2014, 04:01 AM   #41597
Tech Addict
Join Date: Dec 2005
Location: Belgium
Posts: 526
Trader Rating: 6 (100%+)

People using a Reedy Mach2, do you use the standard rotor? Is there something larger available?
To gain some steering into the corner I have to set autobrake which I do not like. Hope to solve this with a bigger (or stronger...) rotor.
Quante is offline   Reply With Quote
Old 11-03-2014, 04:23 AM   #41598
Tech Elite
Bishop's Avatar
Join Date: May 2004
Location: Brisbane
Posts: 2,206
Trader Rating: 4 (100%+)

Originally Posted by toroloco View Post

I'm looking for a new tyre truer.
Which one do You use with which adapter an cutting tool?
I'm not willing to buy a new Hudy one to expensive for my budget.
Thanks for your input.

Stick a GQ/CRC/Calandra something carbide bit into a 3Racing truer and they cut as good as a Hudy, at a fraction of the cost, the adapters are a little tougher to source though, I can't even remember what mine is, they are not commonly stocked at most places.
Bishop is offline   Reply With Quote
Old 11-03-2014, 09:22 AM   #41599
Frank Root's Avatar
R/C Tech Elite Subscriber
Join Date: Oct 2004
Location: Corona, CA, USA
Posts: 4,971
Trader Rating: 25 (100%+)

Originally Posted by toroloco View Post

I'm looking for a new tyre truer.
Which one do You use with which adapter an cutting tool?
I'm not willing to buy a new Hudy one to expensive for my budget.
Thanks for your input.

I have the OFNA truer have been really happy with it.
Frank Root -- TLR Project Manager
Twitter - @FrankRoot FB - facebook.com/FrankRootTLR
Team Losi Racing (TLR) - Team Orion - Spektrum - JConcepts - Horizon Hobby - Stick It 1 - Sticky Kicks - Bradley's Fine Line Designs - liverc.com - OCRC Raceway - Tuning Haus - Pacific Coast Hobbies - RIP
Frank Root is offline   Reply With Quote
Old 11-04-2014, 04:45 PM   #41600
Tech Master
Mark506's Avatar
Join Date: Nov 2008
Location: Latrobe, PA
Posts: 1,085
Trader Rating: 41 (100%+)

Why does it seem nearly impossible to find the TOP or On-point car anywhere? Is the 1/12 market that rough right now or...
Mark Ament

l MOMO USA l OZ Racing l Willwood Brakes | Dunlop Tires |

The Raceway at Beaver: Forever In Blue Jeans
Mark506 is offline   Reply With Quote
Old 11-04-2014, 04:59 PM   #41601
Tech Master
Join Date: Nov 2006
Location: New Bern, N.C.
Posts: 1,169
Trader Rating: 3 (100%+)

Originally Posted by Mark506 View Post
Why does it seem nearly impossible to find the TOP or On-point car anywhere? Is the 1/12 market that rough right now or...
If you are hunting for a TOP 1/12th scale car, you can order one from Apex Pro Shop. Fast shipping, good prices, and good service.
vafactor is offline   Reply With Quote
Old 11-04-2014, 05:03 PM   #41602
Tech Elite
odpurple's Avatar
Join Date: Dec 2002
Location: San Francisco
Posts: 2,187

Originally Posted by Mark506 View Post
Why does it seem nearly impossible to find the TOP or On-point car anywhere? Is the 1/12 market that rough right now or...
Rebel 12 kits have just come in and are available at TOP Racing USA

They will be re-stocked at some of our on-line dealers in a few days:

Not sure if you really wanted an answer to your question, I could only answer for T.O.P. and it's long and boring
TOP Racing USA--OD Racing--Novak--Power Push--J Spec
odpurple is offline   Reply With Quote
Old 11-04-2014, 05:16 PM   #41603
Tech Addict
Join Date: Jan 2005
Location: Springfield OHIO
Posts: 510
Trader Rating: 1 (67%+)
Send a message via AIM to racer034life

On point is sold at mudslide rc.
Sold All my R/c car stuff to by a zx-14, Access Hobbies, CRC, ARC,
racer034life is offline   Reply With Quote
Old 11-04-2014, 05:32 PM   #41604
Tech Master
avs's Avatar
Join Date: Jul 2006
Posts: 1,144
Trader Rating: 2 (100%+)

Originally Posted by racer034life View Post
On point is sold at mudslide rc.


Tony Shimko
avs is offline   Reply With Quote
Old 11-04-2014, 11:18 PM   #41605
Tech Master
LonnyJ1950's Avatar
Join Date: Aug 2009
Location: Tucson, AZ. USA
Posts: 1,134

1/12th racers are a rare breed, so most 1/12th cars are manufactured in low volumes. On top of that, even if your track has a pretty good sized bunch of racers, the LHS is probably not going to carry all the stuff for all the brands. The stuff is out there, it's just harder to find because there are fewer of us crazies racing 1/12th.
LonnyJ1950 is offline   Reply With Quote
Old 11-04-2014, 11:24 PM   #41606
Tech Champion
Join Date: Nov 2001
Location: Hawaii, USA
Posts: 7,154

Fewer of us crazies...but more dedicated than any other class as 1/12th is the longest running class ever
Apex RC
www.apexrc.com - Hawaii's #1 RC Proshop

Share & Like Our Page:https://www.facebook.com/ApexRCProshop
Win free stuff!
InspGadgt is offline   Reply With Quote
Old 11-05-2014, 04:42 AM   #41607
Tech Addict
pumpkinfish's Avatar
Join Date: Feb 2004
Location: Schwenksville, PA
Posts: 606
Trader Rating: 4 (100%+)

Anyone using the Turnigy TrackStar GenII One Cell ESC in their 1/12 pan car? This is my second one (Hobbyking warrantied the first as it was DOA) and I'm having issues with this esc as well. I have all the wires connected properly, but when I plug in the sensor cable, the esc will not turn on. When I unplug the sensor cable, the esc turns on and will run the motor. I am using a motor/sensor cable/1s battery that are all known to work. I also have the program box and do not see an option for sensor/sensorless operation. Can anyone provide some input before I go through the customer service game?
pumpkinfish is offline   Reply With Quote
Old 11-05-2014, 05:20 AM   #41608
Tech Master
R/C Tech Elite Subscriber
Join Date: Oct 2008
Location: Grand Portage, MN
Posts: 1,362
Trader Rating: 39 (100%+)

While 1/12th stuff is harder to find at your LHS there are lots of resources online. For a Class that has been around as long and have the most faithfull followers I really don't know why it gets a bad rap with the LHS's But I use TQrcracing and CRC directly. But then again I race CRC cars.
Jason Deadman

I race toy cars for fun. If I need to explain, you'll never understand.
jdeadman is offline   Reply With Quote
Old 11-06-2014, 09:15 AM   #41609
Tech Apprentice
Join Date: Mar 2014
Posts: 93


has anybody made a spring chart list for 1/12 pan cars?

toroloco is offline   Reply With Quote
Old 11-06-2014, 09:33 AM   #41610
Tech Initiate
Join Date: Dec 2013
Posts: 48
Trader Rating: 20 (100%+)

Yes Brian has done all the work and made a chart. It's on his web site slapmaster tools, also he sells the best thrust kit for pan cars as well,
Scirocco is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
New to the forum mig rod Electric Off-Road 1 01-05-2008 04:23 PM
hi i need help and im new to the forum racer4 Rookie Zone 4 01-21-2007 01:37 PM
Why is this forum listed under the On Road Forum? sport10 Onroad Nitro Engine Zone 0 01-11-2007 07:06 AM
Forum Changes... futureal Wisconsin & Illinois Racing 3 10-28-2002 08:26 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 10:30 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0