If there is one vital bit of the bike which can get neglected, it’s the chain. Having limited opportunity for updating its look, bike chains have remained basically the same for years. They’ve just got thinner as cassettes have gained more sprockets. Chains just don’t have the same appeal as the ‘A-list-celebrities’ of the bike parts world, such as saddles and stems…
Anyone feeling sorry for their chain yet?
Keep it clean
A clean chain is a happy chain. The unfortunate working position of a chain (relatively near the road and handy for collecting grit and road / trail debris) means that of all the parts on a bike, this is the one which needs regular TLC. A specific chain cleaning fluid or regular degreaser will get the thick of the wearing grime off your chain. Chain cleaning baths and brushes do a great job of getting the gunk from between the links.
Keep other bits clean
The components which your chain come into contact with also get dirty and worn over time. Jockey wheels in the rear-gear get worn prematurely if they are not kept clean. Chainrings too, are open to rapid wearing if they are not kept clean. As well as the outer profile of the chainring teeth, make sure that the inner ‘U’ of the teeth is also kept clean. If you go to the trouble of cleaning the chain well, not cleaning your chainrings and jockey wheels can undo all your hard work.
Once your chain and components are clean and dry, apply a decent quality lube to the chain. Change up through the gears after applying. Your chain should now be at its best and ready for many more miles of service. It is worth bearing in mind that an average transmission accounts for somewhere between 10 and 20 watts of power. Each link’s moving parts have friction against each other and reducing that friction through having a clean, lubricated chain will make your bike more efficient.
What you wearing?
Checking chain wear is a good way to keep on top your transmission health. Gradually chains stretch and can wear the cassette and chainrings. Swapping a worn chain before it prematurely wears other components is the most economical way to look after your bike’s drive train. A chain checker tool, might seem extravagant, but can save you money in the long run – chains are far more cost-effective to replace than cassettes and chainrings.
Visually check the vertical alignment of the rear derailleur hanger – this could provide the answer to either an annoying wearing noise from the chain or a feel of increased friction. Rear derailleur hangers are relatively easy to bend and a bent one could be the root cause of chain / transmission noise and excessive wear.
Chains typically come with 114 links, however many Road and MTB’s require about 108 links on average. This is why a chain tool is an invaluable part of any bike riders tool kit. Chain tools can also be used to fix a stiff link in a chain. Make sure your chain tool is suitable for your chain, for example if your chain is 11 speed you will need an 11 speed compatible chain tool. Collect the spare bits of chain each time you fit a new chain and… Hey Presto, you get a free chain after you buy 18 chains! (approx 😏 )
Before joining links (also known as quick link, missing link, power link) were invented, the only way to join a chain was using a chain tool. Joining links are great for quick and easy (tool-less) removal of chains for cleaning. Most chains come with the manufacturers own joining link included. Joining links can also be bought separately and are great to carry with tools, they weigh very little and can save the day should you break your chain whilst out on a ride.
Five Fun Facts about Chains!
- Tour De France riders can get through up to 3 chains on their main bike throughout the three week long race.
- Track sprinters use wider 1/8 inch chain, sprocket and chainring to transmit their extra explosive power.
- Bradley Wiggins hour record chain cost £6000 and is said to be the fastest bike chain ever produced.
- Sketches drawn by Leonardo Da Vinci from the 16th century show a design for a chain with a roller bearing.
- More songs have been written about chains than any other bike part, including;
Chains – Fleetwood Mac
Back on the Chain Gang – Pretenders
Chain Reaction – Dianna Ross