Originally Posted by M7H
Ziggy, is your engine EFRA legal?
I asked if the CRF is EFRA and BRCA legal and Team Orion confirmed it is. I asked how this could be when the hole in the crank is more than 7mm but no response. They are using them at national level here and in Europe so guess they are legal.
I run mine on 25% Nitro as it didnt like 16% but not at nationals.