To split a chain by splitting a link requires a special chain tool. Many multi tools feature chain tools, or they can be purchased separately. Position the chain in the furthest guide from the rivet punch, making sure the chain sits nicely in the tool. Screw in the rivet punch carefully, ensuring it touches the centre of a chain rivet squarely side-on, not at an angle. Firmly screw in the punch to push the rivet out the other side of the chain. Don’t push the link pin completely through, leave a little bit left in the outer plate of the chain which will make it easier to rejoin the chain later. If you are going to use a new pin don’t worry.
 

Clean your chain using ‘Muc-Off’ or another specific chain degreaser in a chain bath. The ‘Muc-off’ bike cleaning set comes with a parts washing tub and all the correct brushes and cleaning fluids (£29.99). Remove your chain from your bike for cleaning. Refit the chain to your bike after you have cleaned all the other transmission components. Lubricate the chain by applying a quality bicycle chain oil, chain lube or WD40. Bicycle chain oils/lubes are available in both wet and dry formulas. The dry versions dry to a waxy finish making it more resistant against grit and dust in dry dusty summer conditions. Wet versions stay wet and sticky making it repellent to washing away in the wet, and is suited to wet and muddy conditions. Apply the oil lube only to the inner links