OS series - two-piece, forged rims, premium quality: OS-29 OS-30 OS-31 OS-32
Latest free style, custom versions, 18-22 size.
All of wheels have to pass the following 3 examinations to qualify VIA and JWL before launching the product:
Dynamic Radial Fatigue Test
The main purpose of this examination is to check air retention by the tire and to confirm the structure strength for the connection of the rim and disk.
Dynamic Cornering Fatigue Test
This examination is designed to test the strength and deformation of disk.
This examination is to test the effect on the wheel in the event of an impact to the wheel such as hitting a pot hole or side impact into a curb.
To provide customers wheels with the highest quality, D2 owns an exclusive team for development. D2 has invested USD 400.000 on the testing equipment of wheels and also have a complete stress simulation analysis system.
It is to predict the data which might happen on the stress for the wheels to reach the correct safe value, reduce the time and cost efficiently, and also get the more precise data from it.
D2 proud to announce that D2 have the certifications of JWL and VIA on our forged wheels!