i believe the roar limit is 1725 grams for wieght minimum
i run jaco nitro shoes ,corallis ,and sometimes the take offs.
i seem to have the best result with the nitro shoes. with the 30 mm 0 degree offsets in the rear,you have to grind a little bit off of the hub carrie to fit other than that no prob.as for the k -factory tank , i have heard they are brittle ive seen many people brek them but luckily i havent had the pleasure
.im also looking to get the k-factory left side brace which will protect the tank from side swiping hacks
.i also have another ntc3 that is stock except for the fix on the front and rear ,that has a top engine in it ,that car is way fast --