Reply to thread

Message: <blockquote data-quote="Orange 94" data-source="post: 1250225" data-attributes="member: 17635">found this on a forum, seems like concrete info. I'll be doing some more research on the testing xxr wheels go through though."I think XXR is kind of getting a bad rap here. We have sold them since  they where Essenza wheel back 13 + years ago we have sold thousands.They  are made by Primax wheel co and make 2.4 million wheels per year and  have been in buisness since 1976.Guys they are not some fly by night  junk wheel! They are also Tested to the Japanese VIA standard  Here is a brief outline of testing to JWL spec:Cornering Fatigue Test (Drum Endurance Test)The purpose of this test is for checking wheel rim strength and  durability. Place a wheel assembly with tire on test equipment. Radial  stress is then added to simulate vehicle weight.Test run 500,000 cyclesAfter 500,000 cycles inspect for cracks, deformation and any nut loosening.Radial Load Fatigue Test (Rotary Bending Test)JWL pass criteria: 100,000 cyclesThe purpose of this test is for checking durability of the wheel disc.  The spokes and the hub are the first point of weight distribution from  the vehicle and spoke strength is gauged by this test.Place a wheel on testing equipment and by adding bending stress to center of disc –Test run 100,000 cyclesAfter 100,000 cycles, inspect for cracks, deformation and any nut loosening.13 Degree Impact TestJWL pass criteria: 594 kgThe main purpose of test is for checking strength between rim and disc  cross section. The “joint” or the area where the spoke and the rim meet  is an important structural area that is subject to great stress. The  horizontal weight of the rim and the vertical stress of the spokes meet  at this joint and proper structural stability is crucial for a proper  wheel.The wheel assembly is placed with tire tilted 13 degrees from horizontal plane on testing equipment.A preset weight is dropped on the outer sidewall of tire, thus giving  impact to the wheel/tire. Then inspect for cracks, deformation and air  leak.This test is very important for the recent trend of a larger/wider wheel  with lower profile tire combination, because there is less air volume  than OE wheel/tire and more stress to inner rim section. This test  simulates actual usage condition such as hitting corner curb or objects  from side. In Chicagoland we have the nations worst potholes and these have held up as good as any and better then alot of light weight high dollar stuff.Are they  top of the line/? no, but they are much better quality then some of you  seem to think..."-http://forums.nasioc.com/forums/showthread.php?p=33464903</blockquote>