Heavy-duty bike tyres in size 20 are designed for enhanced durability and puncture resistance, crucial for withstanding rough terrain and heavier loads. 1 These tyres often feature thicker sidewalls and robust tread patterns to provide better grip and longevity compared to standard tyres. They are a popular choice for BMX bikes, kids' mountain bikes, and even some electric bikes where extra strength is beneficial. Brands like Maxxis, Continental, and Schwalbe offer 20-inch heavy-duty options with varying tread patterns optimized for different surfaces, ensuring reliable performance and safety for more demanding riding conditions.