All boards fail, do I dare ask how many TK 22 have had to be repaired.? I am just saying all boards have their weakness. A RX18 can be replaced for $25.

I am not wrong at all. You change the mechanical advantage through lower gearing and you drop the load on the motors. That is a fact. I have twisted off a brass driveshaft with an RX18 in a Metal Mato Tiger., Another fact. The issue is more with the stock gearing then it is the RX18.

Many guys in the UK run the RX18's in outdoor club settings and have no issue, as long as you look after the gearing. Very first thing you need to do is get rid of the stock gear ratio, and I don't care what board you use. You want better low speed control and better grunt through the tough stuff, lose the standard HL gear ratio.

No board is beyond failure. I am just pointing out what people can do to improve the reliability of the RX18, and maybe save themselves spending money. If you buy a stock Heng long tank with an RX18 and you want better performance buy lower ratio gears. This will give you better low speed performance, provide more torque, and save the stock electronics. IF you have zero interest in sound, IR battling, etc you can still make you stock electronics work better I have zero vested interest in people taking that approach. You don't need a BARC or a TBS, and I don't sell upgrade gears.

My advice to anyone is the first upgrade you need to do is buy a new lower ratio gearbox. It will improve the performance of you tank regardless of what electronic upgrades come later.