Bassett 39ST4S 13x9 Inertia 4x4.5", 4 Inch BS, Silver

The 13" Bassett Inertia Advantage series wheels use the Inertia Advantage five-spoke center design and a high quality spun-form shell. The brake cooling holes feature almost 9 square inches more area, while the weight placement in the center helps the wheel rotate faster. Also, CNC spun form rim shell construction and strict quality control means runout is much lower than other 13" wheels on the market. Lightweight and low runout (under .030") thanks to spun-form wheel shells produced in-house. Reinforced torque ring and forged coining on center increases durability. The 5/8" valve stem hole is located behind the center to avoid clipping. Larger brake cooling holes reduce brake temperature and prevent fading during long feature races.

PLEASE NOTE: Bassett Racing Wheels are lug-centric, which means the wheel is constructed and trued off of the bolt circle. The center hub bore hole can not be used to balance Bassett Racing Wheels. We recommend using an experienced tire mounter with a bolt pattern adapter plate that allows for balancing off of the bolt circle. Bassett Racing Wheels also require 45 degree chamfer lug nuts.

• 13 x 9 inertia wheel
• 4 on 4.5 bolt pattern
• 4 inch backspace 
• Color: Silver

For offroad use only. The following must be considered when using Bassett wheels for on highway/street use when the wheel/tire assembly is being balanced. Bassett wheels are lug centric, which means they are built off of, and must be balanced using, the bolt circle and NOT the wheel center hole. Improper use of a tire balancer that centers the wheel on the hub bore, not the bolt circle, will result in an incorrect reading for rim runout as the center hole is not in the perfect center of the bolt pattern. The only machine capable of performing a lug centric balance is the Hunter GSP 9700 with the flange plate bolt circle adapter and no centering cone.

For offroad use only. The following must be considered when using Bassett wheels for on highway/street use when the wheel/tire assembly is being balanced. Bassett wheels are lug centric, which means they are built off of, and must be balanced using, the bolt circle and NOT the wheel center hole. Improper use of a tire balancer that centers the wheel on the hub bore, not the bolt circle, will result in an incorrect reading for rim runout as the center hole is not in the perfect center of the bolt pattern. The only machine capable of performing a lug centric balance is the Hunter GSP 9700 with the flange plate bolt circle adapter and no centering cone.