Your cassette is an integral part of your bike’s drivetrain. Found on the drive side of your rear hub, it consists of a number of circular metal discs with teeth around the edge, ranging from small to large – these are called ‘sprockets’.
Clipless road bike pedals are the go-to choice for nearly all road cyclists because they provide a secure and stable platform for your feet to your bike.
Because your feet are clipped into the pedals, transferring energy through the bike becomes much more efficient and will benefit not only from a downwards pedal motion but also as you drag up your legs around and back up.
Chainrings are literally a vital cog in the machine that is your bike. They’re the part responsible for transmitting the energy you create by turning the cranks to the rear wheel via the chain.