EK 428 Pitch SRO Series O RING Chain 100 Links. The SRO series of chains from EK offers a great value range of sealed O-Ring chains for bikes of all sizes. Despite the affordable price tags, SRO series chains are made with all the attention to detail and high quality materials found throughout the EK product range. Pitch sizes from 520 upwards also feature lightening holes in the inner plates to save weight for greater throttle response and accelleration.

You can expect great chain life too with the specially treated pins and bushes being protected by O-Rings that keep the lubricant in and the road grime out.

The 428 Pitch SRO chain has an ultimate tensile strength of 23.5kN and weighs in at just 1.038Kg/100 links.