An area of the bike which works hard and gets down right dirty, why not give it some love and take the hard work out of adjusting your chain tension with our smooth rust free nut and bolt sets. Available in single sets, pairs and in different lengths. Please use our vehicle search for model specific fitments. Manufactured from 316 Stainless Steel which offers fantastic corrosion resistance and durability. They are machined with rolled threads to give extra strength and polished to a mirror finish. The perfect upgrade. Stainless Steel is also available in black, which not only looks great but has other benefits too.. This beautiful long lasting black finish results from an application of Diamond Like Carbon Coating (DLC) This gives supreme hardness and corrosion resistance provided by a nano composite coating, which increases the fastener lifetime dramatically and helps to prevent galling. By incorporating them right from the beginning, the overall system cost can be held level or may even be reduced. Please note that due to this special coating Black Stainless Steel is not identical to our Black Aluminum.