RPM for 2200 with 6s

[SpeedAssault]

Hey guys/girls

I have a custom ride here and want to know if there will be wheel spinning upon take off and still not over heat things? Or will I have to gear so high inorder to keep RPM down that it will not peel out ?

10lb 1/5 custom losi direct drive, CD locked and rear locked, using a MMM, CC2200 and looking at buying a PQ 6s 6000 25c lipo 120 amps
I'm guessing a final ratio of 8:1 or so ? would be plenty for torque and speeds in 45+ 50mph
wheel base is 21"

Any recommendations here ?

Thank you very much