Front some the split upper deck. The split (2 piece) top deck is recommended primarily for asphalt tracks. The top deck features milled holes for unique tweak-free top deck screws. The most known deck provides more steering response, and more on energy steering. The flex characteristic differs when compared with kit top deck, as well as the 2 pieces enables more flex choices, which is modified individually between front side and rear. Machined from 2.0mm graphite product, the form connected with top deck is created particularly to have maximum traction and great steering traits simultaneously. The utmost effective deck are connected to the motor mount using these choices: 1.) smooth environment - just one rear screw is employed. This allows maximum flex and maximum steering. However the car is less stable on-power. 2.) rigid environment - Both screws are used. This environment provides paid down flex, rotation is reduced. This environment provides maximum protection and makes the vehicle more straightforward to drive. Fits X4F.