At Horsham In TC it's 17.5 2s lipo as a class and 13.5 lipo as a class-both run rubber(Jaco blue as spec tire)In either TC class I think you can run 6 cell in either class.But lipos have more volts and are lighter in a 2s pack.
In 1/12 its diff--13.5/1s lipo-or-17.5 4-cell nickle(3.7volts vs 4.8volts)
F! Metal Militia,VTA NATION--Team SloMoFo
ft4 MT wallet
cyclone;xxx-s;x-rayT2;crc gen xl;bmi 12rrl