BMX Rims

Understanding BMX Rims

BMX rims are the metal structures of the wheel that secure the tyres in place. They are attached to the hub via spokes and are composed of materials such as aluminium, steel, or even more high-end materials like carbon fibre.

Determining the Right Size for BMX Rims

The standard diameter for rims in both freestyle and racing is 20 inches. This size suits adult riders and taller children, as it is commonly found on both standard and pro BMX models. For younger or shorter riders, smaller sizes of 18, 16, or 14 inches are available. Freestyle enthusiasts should refer to our BMX Freestyle Size Chart to find the recommended wheel/rim size based on the rider's age and height.

While BMX rim widths can differ, they generally fall between 30-36 mm. The typical choice is 32 mm, although some riders opt for narrower rims for lighter weight or wider rims for added stability.

The spoke count on BMX rims impacts the wheel's strength and weight, with a 36-spoke design being the most prevalent for freestyle use. More spokes provide enhanced strength, so experienced or heavier riders might opt for rims that accommodate more spokes, with 48 spokes being a common alternative. Race BMX bikes usually have fewer spokes compared to freestyle rims to keep the weight low and optimise speed.

Comparing Single and Double-Walled BMX Rims

A key decision in purchasing rims is choosing between single or double-walled designs. Double-walled rims are thought to be more robust, making them ideal for freestyle riding, while also offering an excellent strength-to-weight ratio.

Single-walled rims, being less sturdy than double-walled options, are generally more budget-friendly. Nevertheless, their reduced weight makes them a preferred choice for some racers.

For those looking to complete their wheelset with the necessary hubs, spokes, and hardware, our main category, Wheels & Parts, provides a comprehensive collection.