They’re called groupsets, drivetrains and components, but they all refer to the group of parts responsible for shifting and braking. Choosing road bike components is one of the biggest decisions you’ll make when buying a new bike or upgrading an existing one. Do you go with mechanical or electronic shifting or use a compact or standard crankset? We’re inundated with options, but it pays to take the time to match your riding style to the right components. It could mean the difference between spinning confidently up a hill and feeling constantly bogged down in your easiest gear.