Hello.
I'm about to bite and buy these RoK Lox 40 from RC4WD.
My question is, will these Axial Wheels fit our Summit without any mods'?
Its says 'narrow' wheels needed? rubbing issues? or no worries?

http://www3.towerhobbies.com/cgi-bin...&I=LXPEE1&P=ML


http://store.rc4wd.com/Rok-Lox-40-Se...res_p_755.html


Thanks ya'll