When i dhould replace my rear tyres on 2wd buggy?
 

My schumacher minipin on my 2wd buggy is wearing out, im wondering when i should replace them?

Do you wear it down until insert show up??

or wear down to little dipples ?

depends what you are doing with them?
If you are racing on carpet then you will want to replace them before they wear down too much as you will lose grip.
If you are just bashing in the road then run them as long as you want until they fall apart!

Wear them down to inserts!! haha thats a new one.

It all depends on what your racing on, If its very high grip i like to use tyre that are about 50% worn. I have a bag load of tyres some new some bald and everything between, I use them like a tuning aid.

just get them when you feel the car is handling bad I normally change mine after every other meeting

The question is are they still providing enough grip for the surface you are racing on? If so keep using them. You can always buy another set of wheels/tyres ready and then alternate between them as you need.

I have sets of tyres with hardly any spikes left and they are perfect for certain tracks and conditions.