The D.I.D NZ Series is a high performance non O-ring chain. It features Super DHA treatment on quad-riveted pins and utilizes solid bushings. For proper chain selection, consult your owners manual. Improper fitment may cause serious injury and/or machine damage.NOTE: The displacement information is for reference only; displacement limitations may vary from model to model. Displacement guidelines are NOT applicable for converted (modified) motorcycles, chain conversions from Original Equipment Manufacturers required size chain, or racing motorcycles. If your stock motorcycle came with an endless chain, a replacement chain must be installed with a rivet type connecting link.