FN Wheels manufactures these custom 18" X 9" wheels for the 07+ Tundra. They are ultra strong and lightweight. The bolt pattern is 5 on 150mm, the backspacing is set at 5.47" and the wheels are hub centric. (For comparison, your factory 18" X 8.5" TRD package wheels have approximately 6" of backspacing.) These wheels are available powder coated in Matte Black, Matte Bronze, Titanium Silver and Graphite Gunmetallic.
From the FN Wheels website: “Look past the strikingly aggressive design of the BFD by FN Wheels and you will find one of the best-engineered wheels currently available. The BFD wheel is manufactured using a state of the art counter-pressure cast method that minimizes porosity and maximizes uniformity. Unlike typical gravity cast wheels, counter-pressure cast wheels such as the BFD are lighter, stronger, and are more environmentally friendly to produce.
9/2015: The wheels do not include a center cap and are not machined to accept a center cap; the consensus from customers is that they prefer the look of the wheels without caps.
Each BFD wheel is tested to meet or exceed the standards outlined by the strict JWL-T and VIA requirements from Japan. The BFD is also produced to meet or exceed the requirements set forth by the SEMA standard of SAE J2530. Meeting the SAE J2530 standard is noteworthy, because this is currently a voluntary standard not mandated by any governing body.