Here are a few setups with similar tires sizes for stock and mod.
Slightly larger rear dia.
Though different compounds, at the same event.

Mod

http://www.teamcrc.com/crc/downloads...09IICsetup.pdf

Stock

http://www.teamcrc.com/crc/downloads...09IICsetup.pdf

Hey just quick question.

Is Tekin still the ESC for 12 scale or is there a better and/or more user friendly esc for single cell out there.

The reason for asking is I have a Teking It's in my wgt. and don't really want to do the swap thing. So looking for a new esc for the GenXL.

Thanks in advance.

I'm putting in the Hobbywing 120A 1S Programmable ESC

No heat sink or fan needed for 1 cell and integrated booster also capable of running a 2 cell

All the Features also great price and Loads of support on the forums here.

running it in my GenX 1/12th 10.5 boosted Should be fun

The LRP Stock Spec V2 is an excellent 1s ESC, it requires no booster as well and when paired with the X12 motor it gives monster power at very low gearings for spec classes. I run 13.5 boosted at the recommended 55mm of rollout on slow-ramp and its great. A well-running Tekin can be similar in performance, but I like the LRP.

Really!?!?? As a lifer in 12th stock, I greatly prefer smaller tires. My corner speed is damn near ALWAYS better with itty-bitties, than it is with meat on the sidewalls, unless the track is LOW-bite. You are, of course, WAY faster than me, so I bow to your experience, sorta.

Champs BABY!!!!

hmmmm interesting , I am new to 1/12th last year was my 1st year , but i was told "Always have 2mm differance between front and rear tyres i see on your stock set up you had 1mm ,

can you tell me what this gives ???

Thanks Phil

Any gearing recomendations for an LRP SXX stock with a 10.5? Im just starting out and have no idea where to start.

SXX V2 manual says that boosted 10.5 should run about 48mm of rollout with the X12 motor, and though it doesn't say I think it would be a little more with a different motor, like 52 or 53. Just use slow-ramp boost setting 3 or 5 and it should be fine

Those setups are from Team CRC drivers. not me.
Opinions and setup taste vary, you have to find what is comfortable for your style.
The 2mm offset is more of a "guideline"

I use tire diameter split as a tuning aid. If you need more steering, reduce the split. If you need less steering, increase the split. 2mm difference is a good starting point for 1/12th.

interesting info, so when you reduce the split is this referring to same size front to rear, and less steering front smaller and larger rear's, I've never though about using tire size as a tuning ad.

Thanks

I found a CRC carpet knife that seems to be in brand new condition with a Tekin RS pro esc, Fantom ion2 motor, sr300 reciever, digital servo, and a team checkpoint 50c 5000 lipo. What is a good price for this set-up? thanks

~375 would be a good price

75 chassis
125 esc
50 motor
50 receiver
50 servo
25 lipo

Crashby knows a thing or two about 12th scale.

Here is a 12th mod setup, with the same size frt and rear tires.
This driver is fairly quick too...

Thanks for the help, its a second hand ESC so no manual.