Sprockets, cogs & cassettes at cheap prices from starbike.com, the bicycle online shop
A
cassette (also called rear sprockets) is mounted on a freehub of a rear hub and consists
of 7 to 11 individual cogs. In combination with the
rear derailleur
it is responsible for the selected (rear) gear.
Cheaper
cassettes are riveted together completely, while today's high performance cassettes
consists of partially individual cogs (an example are
Shimano XT cassettes),
which lowers the weight and makes the replacement of worn out cogs easier.
The cassette is being fixated with a lock ring on the freehub shell of the
rear hub.
There are two different standards of freehub shells:
the
Shimano HG standard (which
SRAM uses as well)
and the
Campagnolo ED standard.
This needs to be considered before buying, because Shimano and Campagnolo cassettes are not
compatible to each other.
The freehub type is listed in the product name of all hubs and wheels.
If you're unsure which cassette is the right for you, contact us and we'll help you.