What to Know Before Buying a Road Bike Online

A road bike is designed with speed in mind rather than comfort over rough trails. It sports skinny tires, drop handlebars and a very lightweight frame – all created for rapid movement along smooth roads. Purchasing one online bypasses the test ride, so one must really know their measurements before clicking ‘buy now’. Frame size alone confuses many first-time buyers, and a bike that’s just 2 cm too large or too small will change how the entire ride feels altogether. Industry figures indicate that nearly a third of our first bikes are returned due to fit issues alone. Before you scroll through a road bike online range, get your measurements sorted so the bike that arrives actually fits from day one.

Height	Inseam	Typical Frame Size
160-168cm	71-76cm	XS / 49-51cm
168-175cm	76-81cm	S / 51-54cm
175-183cm	81-86cm	M / 54-56cm
183-190cm	86-91cm	L / 56-58cm

Table of Contents

What Does the Groupset Actually Control?

The groupset is basically all your gears, brakes, and shifters integrated into one system. Entry-level groupsets – like Shimano Claris – do shift quite well yet demand a bit more hand power and a lot more regular adjustments. Mid-tier sets such as Shimano 105 shift even smoother and retain their settings for much longer before needing a service. A rider who regularly tackles hills will immediately notice the difference after just a few rides since a smoother shift results in less unnecessary effort when climbing a steep slope. Investing a bit extra here really pays off every time you ride out, not simply on competition day itself.

Should You Choose Disc Brakes or Rim Brakes?

Disc brakes stop faster in wet weather, full stop. Testing from cycling safety groups shows stopping distance in rain drops by close to 30 percent with disc brakes compared to rim brakes. Rim brakes are lighter – and much less costly to repair – so they’re still a perfectly reasonable choice for cyclists in dry climates with a limited budget. Your choice should depend on your actual riding location – rather than what’s latest in a catalogue picture. An avid Melbourne commuter navigating winter wet streets really requires an entirely different type of brake system from that of a dry-season weekend racer.

Tyre width plays into this too. Road bikes once shipped with very narrow 23mm tires – but many new models now come with 25mm or 28mm ones instead. Wider tires hold onto wet roads much better and also smooth out tiny bumps more effectively – yet you’ll lose hardly any speed when riding on level ground. Just a little bit more rubber really makes a bumpy daily commute a whole lot less jarring.