Motor?tyres for the Iceman series

[whites75]

With the series on this sunday I wondered what is a good tyre choice to go with for my 2wd buggy please? At present I have schuey spikes (yellow) front and rear, but also have some new yellow spikes (rear) and cut staggers (front) in the spares box?

Also, if I left my 17.5t motor in my buggy as it is now am I likely to be left waaay behind, or would it be best to use another motor?

cheers