What is jwl via
JWL stands for "Japan Light Alloy Wheel", it is the official wheel testing standard conducted in Japan. Throughout the years, JWL is not only used in the Japanese domestic market but also has become the benchmark in the global alloy industry.
Although there is no certification is required for selling wheels in Canada, RS wheels have always committed to pushing for the highest quality and levels of safety in daily driving. Our wheels have been tested with these standards and we will continue to provide high-quality alloy wheels to all our Canadian customers.
What is pcd
PCD (Pitch Circle Diameter) is the diameter of the circle formed from all the studs or wheel rim holes.
What is center bore
Centerbore is an opening on the back of the wheel that is machined to exactly match the hub, centering the wheel on the vehicle properly. If the wheel is a vehicle model-specific, it will have been bored to match the one vehicle. If the wheel is meant to fit multiple vehicles, a centering ring system will be used to match the desired specifications of the hub of the vehicle, maintaining position so that the lugs can be torqued down.
What is offset
Offset is the distance, in millimeters, between the centerline of the wheel and the hub mounting surface. There are 3 types of offset: zero offset, positive offset, and negative offset. Zero offset is when the hub mounting surface is in line with the centerline. A positive offset is when the hub mounting surface is further towards the outside of the wheel, with the negative offset being the opposite, with the hub mounting surface being towards the inside of the wheel.