sorry! I believed you already had the GRC....
Both are good minibikes, I prefer the GRC because it's bigger and comfortable, the Polini reverse also has more problems of spare parts , I recommend you GRC, you surely will find very well , it's very competitive.
Mandi Massi

Bueno lo mas seguro es que me compre la gp4 por el tema de recambios ya que grc no dispongo de una tienda fisica para poder comprar recambios grc, y polini tengo el distribuidor cerca asin que me iria muy bien.

Gracias ;)

Polini has electronic problems ( coli and spark ) and you must be careful to the quantity of oil that you put .
If you are very tall you will have problems of habitability , if you are small it's excellent
Mandi massi

Gracias por tu opinion lo tendre encuenta, la altura me va bien he cojido la gp3 i me iva bien ;).