Hi All

Has anyone had any experience with DMR_JAPAN's RC Valve Pulley Product F27-21002 (Pic Attached).

It claims the following:

'DMR-JAPAN has remade the special RC valve pulley, which is a revolutionary device for NSR developed and sold by RISEON in the industry!
This is a wide pulley with a safety device (over torque release system) to the conventional wide pulley! When the movement of the cable becomes bad or the RC valve sticks, the fixed clutch of the rotation shaft and the pulley is released, and only the shaft operates to the specified value.
This system prevents the servo motor from chipping gears, motor brushes from burning out, and the PGM from burning out, which is considered to be the biggest bottleneck!'

I was wondering given all the horror stories of PGM's burning out, that it would be prudent to fit one of this to my son's MC18 R5K.

Another reason I have is that we are mating a MC28 R3S engine to a R5K Bike and I am a little concerned about whether we can adjust the required free play in the RC cables (0.2-0.8mm which is not much, but important) or may need cables made up to give the free play?

Lastly, is it a complete No No to move the RC Servo by hand? Reason being to see whether the max. rotation of the RC Servo (either way) matches the full rotation of the RC Valves, to make sure there will be some slack in the cables? Or does the RC Servo not fully roate that much?

Thanks in anticipation.

Phil