Collection: Middleburn Chain Rings

A chain ring is a toothed ring attached to your bike’s crankset that engages with the chain to drive the rear wheel. As you pedal, the chain ring transfers power from your legs through the chain and into the drivetrain, propelling the bike forward. Chain rings play a crucial role in determining your bike’s gearing and efficiency across different types of terrain.

You should consider replacing your chain ring when the teeth become visibly worn, hooked, or sharp. Common signs include chain skipping, poor shifting performance, and a general feeling of inefficiency while pedalling. If you notice increased drivetrain noise or if your chain slips under load, it’s often due to worn teeth that no longer mesh properly with the chain.

BCD stands for Bolt Circle Diameter, which is the diameter of the circle that goes through the centre of all the chain ring’s bolt holes. It determines whether a chain ring will fit your crankset. Matching the BCD of your crankset to the BCD of your replacement chain ring is essential for proper installation and performance.

Yes, you can upgrade to a different size chain ring to change your gear ratios and tailor your bike’s performance to your riding style. A larger chain ring will give you more speed at the expense of easier climbing, while a smaller ring makes climbing easier but limits top-end speed. Just make sure the new chain ring is compatible with your crankset and drivetrain.

Middleburn chain rings are CNC-machined from high-grade aluminium, which offers a great balance of strength, light weight, and durability. These chain rings are engineered for precision and performance, making them a trusted choice for serious riders who want reliable and responsive drivetrain components.

Installing a new chain ring involves removing the crankset, unbolting the old ring, and securing the new one using the correct torque settings. You’ll need a few basic tools such as a crank extractor, chain ring bolts, and a torque wrench. Ensuring correct alignment and torque is key to smooth performance. If you're unfamiliar with the process, it’s a good idea to seek help from a professional bike mechanic.

Yes, we offer Middleburn chain rings suitable for both road and mountain bikes. Whether you're looking for a single-ring setup for MTB or a double or triple chainring setup for touring and road riding, we have a variety of sizes and configurations to meet your specific needs. Speak to our team for help and advice with selecting the right sized chainring for your crankset and bike.