How are road racing bikes defined from what the less well informed among us (me included) understand of cycle design?

From the plethora of cycle designs and variations available, how does one define road racing bikes from hybrids, mountain, cyclo-cross and BMX bikes? One would be forgiven for holding hands up in the air a thinking “they’re all the same”.

However, the definition of road racing bikes is something which has evolved over many years, and the design is governed by the UCI (Union Cycliste Internationale), but in general, road racing bikes have certain characteristics which separate them from any other type of bicycle design.

Road racing bikes in general are lighter than their counterparts, more commonly being constructed from aluminum or an aluminum alloy, composites or carbon fiber, which most of the top professional cyclists use in their sport.

A road racing bike differs from specialty bicycles in as much the frame will obviously be much lighter, but also stiffer in design; with less flex built into the frame, the rider can transfer much more power from his or her body down through the pedals and into the drive train, and subsequently into the wheels.

In terms we can all understand, a road bike is designed to ‘go faster’ and be more efficient at high speeds.

However, a road racing performance bike gives up much of its flexibility in terms of how and where it can be ridden; for example a mountain bike can transfer from being ridden on a road to wet, muddy country terrain instantly, and is equally at home on the road or off road. Not so a road racing performance bike.

It is pretty much like the comparison that can be made between a sports road car and a utility vehicle; the latter has more flexibility in its performance and where and how it can be driven at the cost of speed and power. The same is true of a road racing performance bike and a mountain bike comparison.

Road racing performance bikes also sacrifice comfort for speed, in as much the rider will sit on the seat in a low position when holding the (lower than the seat position) slung handlebars, to create a more aerodynamic profile when riding.

Wheels and tires are different too; a minimum of 12 spokes on low profile alloy wheels, fitted with low profile, low tread tires to make maximum efficiency with a lower drag coefficient against the road.

So there you have it; when cycling crops up in polite parlor conversation, and someone asks “what is the difference between a racing road bike and any other bike?” you can bore the socks off all of your friends with these answers.

But don’t forget to revise for the quick fire challenge round of questions.