Located on the inside of the wheel, wheel markings are a series of numbers and letters that provide coded information about the wheel such as its diameter, width or offset. However, you need to know how to read them - and once you do, you will see there is much important information left for you.The sequence of numbers and letters help to identify not only the appropriate, but also other attributes and features. Have you ever wondered what the mysterious letter “J” means (the one placed after the number indicating the rim width, in inches)?Likewise, not many drivers know what the “H2” at the end of the size symbol stands for. Read on to find out what structure or parameters of the wheel they symbolise. The size, diameter and ET are wheel dimensions.
We need to know them when searching for appropriate products for our carsThe letters J and H2 in the letter and number combinationThe letter “J” means a tyre bead profile. This is the marking used to define the wheel collar profile you should never ignore. Wheel collars and tyres must be compatible. Wheel cross-section profiles with a 5 ° wall tilt.Profiles no longer used in passenger carsThe following wheel profiles are no longer used in passenger cars:.Semi-drop.Flatbase.Divided.Drop-centre.15 ° drop centreWhile they can still be found in trucks, vans and agricultural vehicles, they are not used in any passenger car any more. As such, you are highly unlikely to come across them for your own car tyres and wheels.
Skyway Wheels Serial Numbers
For the purposes of information, we will still present you with their shapes so that you can have a basic idea of the profiles discussed.
Oldmetal wrote:I think it is just a batch number, nothing to do with date of manufacture, I remember this question being asked before.If there is a date marking it will be with a paint pen/marker on the inner rim of the wheel. My metal hub coaster tuff says 'B332 8-18-79' (or could be 77, it's hard to tell).Going by the type of hub you should be able to get an approximate age within a few years.Seemed like a logical answer to me. Never seen any other info in these years that have passed. If the stamped number in the sidewall is just a batch number than we would need the paper work from Skyway documenting which years which batches were made and that's most likely Never going to happen.Last edited by 1979 (2011-02-17 7:59pm).