Originally Posted by kjoer

Ok, I have the following issue.

I have two 12R5.1, both with a KO Propo #30048 PDS-951ICS servo. The servo saver axle is not sitting in the middle of the car, its about 0.25mm off center.

With the servo saver sitting perfectly vertical in neutral and no steering input given, this causes one steering turnbuckle to be 0.5mm longer than the other one, while having perfectly neutral toe. So there is an a-symmetry in the steering geometry, giving the following results while steering:

full steering to the left: 16° outer wheel lock, 25° inner wheel lock
full steering to the right: 16.5° outer wheel lock, 23.75° inner wheel lock

So basically I can't get identical lock values on the inner and outer wheels at the same time. Match the outer wheels and the inner wheel lock values aren't similar, and vice verse. For now I've averaged it out while keeping in mind the outer wheel has more effect on steering than the inner. The other car has the exact same issues.

My transmitter (KO Propo #80400 EX-10 Eurus) is set up as following:

trim: R7 (servo saver perfectly vertical with no steering input)
balance left: 45%
balance right: 66%
travel: 100%

The difference between left and right balance is due to the balance being calculated with the absolute zero point/trim 0 as reference, with the trim being set to right 7 to get the servo saver in a perfect vertical position. Annoying, but not an issue at all.

Now, to the point. These wheel lock differences could all be taken away by making sure the server saver is sitting in the middle of the car, by modifying the servo mounting blocks or chassis plate. Are there any servo mounts available for this car/servo combo?

A second solution, but a rather nasty one, might be setting the car up with the servo saver not sitting vertical in neutral, but under an angle, with no steering input and the wheels in perfectly neutral toe. It might work, but it would involve a lot of tinkering and I think its way too messy. Symmetry is key imo.