Motorcycle
Motorcycle sprockets, chains, cables, filters, batteries and care. Choose a sprocket by pitch (for example 520) and tooth count. On the shelf: D.I.D, AFAM, JT Sprockets and Hiflofiltro.
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Service basics to start with
How to choose a chain and sprockets
Chain size is shown by a three digit number: the first digit is the pitch, the last two the width. 520, 525 and 530 all have a 5/8″ pitch and differ only in width, 428 is used on smaller bikes. The chain and both sprockets must be the same size. Find the number of links in the motorcycle's data or count the links of the old chain.
The number of teeth sets the gearing: a smaller front or a larger rear sprocket gives quicker acceleration and a lower top speed, the opposite makes the ride calmer. If you change the number of teeth, check whether the chain length has to change too. The safest choice is sprockets with the same number of teeth as the factory fitted.
A chain and its sprockets wear together, so replace them as one set. A new chain on worn sprockets wears out quickly and a worn chain ruins new sprockets. An open chain needs a master link: a rivet link is recommended for more powerful bikes, and fitting it takes a chain riveting tool.
Frequently asked questions
Read the chain size, such as 520 or 525, on a side plate of the old chain and count its links. The same details are also in the motorcycle's owner's manual or the maker's data.
Yes, it is recommended to replace the chain and both sprockets at the same time. A new chain does not sit properly on worn sprockets and wears faster, so replacing parts one by one saves little.
A rule of thumb is every 500-1000 km and always after riding in the rain or washing the bike. Spray a chain warm from riding on the inside, onto the rollers, and let the lube soak in before you ride. The exact interval is in the owner's manual.