Bicycle wheels come in a wide range of sizes from 12" wheels found on smaller Kids Bikes to larger 29" Mountain Bike and 700c Road Bike wheels. Larger wheels are normally faster and more stable at speed and their larger contact patch improves grip too. Smaller wheels are normally lighter, more manoeuvrable and have quicker acceleration.
Wheel sizes are defined by the country that first popularised the style of bike that used them - so you'll see some imperial and some metric measurements listed. Wiggle includes the ISO standard in brackets after each for ease of comparison.
Performance wheels are a great upgrade as they significantly improve your ride quality. Buying a lighter and stiffer set of wheels can help reduce rotating mass and this can help you accelerate and climb with greater speed and efficiency.
When choosing your set of wheels it’s important to understand what performance gains you are looking for. You may choose your wheels based on their weight for better climbing, their strength and stiffness for greater durability, or aerodynamics to reduce drag and go faster on your bike.