Best Bike Crankset Crank Arms of 2025

The BUCKLOS Crank Arm Set is crafted from high-quality aluminum alloy, ensuring durability and reliability for your cycling needs. Its two interface types—square and diamond hole—allow you to select the perfect fit for your bike, whether it's a mountain bike, electric bike, or exercise bike. Installation is simple and requires minimal tools, making it convenient for anyone to replace or upgrade their crank arms. This versatile crank arm set is designed to enhance your biking experience, providing a dependable solution for various bike types.

The BALINGE Crankset 170mm is designed for a variety of bikes, including mountain, commuter, and E-bikes. It features a durable construction combining steel and aluminum alloy, ensuring long-lasting performance. You’ll appreciate the easy installation that takes just about 15 minutes, allowing you to quickly get back on the road. Additionally, the crankset is compatible with single and multi-speed bikes, offering flexibility for your riding style. The included plastic double wall chain cover protects the chain from damage and prevents shifting issues, enhancing your riding experience.

The KooingTech Bike Crank Arm is crafted from high-quality aluminum alloy, ensuring a lightweight yet durable design. Weighing only 7.1 ounces, it offers strength without adding unnecessary weight to your bike. This crank arm features a standard 170mm length, making it a versatile replacement for various bike types, including mountain and road bikes. Additionally, it has a square inner shape, which is essential for compatibility with your existing setup. Installation is a breeze; just remove the damaged crank arm and replace it with this new one, allowing you to get back on the road quickly.

The Alps2Ocean Crank Arm Set is crafted from high-quality aluminum alloy, ensuring it is both sturdy and long-lasting. This durability means you can rely on it for consistent performance during your rides. Available in various lengths, the crank arms cater to different rider preferences, making it easy to find the perfect fit for your bike. The square hole design simplifies installation, allowing you to quickly and effortlessly set it up. Lightweight and user-friendly, this crank arm set enhances your biking experience without adding unnecessary weight.

The WEEROCK Mountain Bike Crankset is designed for versatility, accommodating single-speed bicycles as well as 6 to 11-speed mountain bikes. Its drop-stop design features a narrow-wide tooth pattern that effectively prevents chain drops, enhancing your riding safety. Made from sturdy aluminum alloy, this crankset is lightweight and resistant to rust, ensuring durability on your rides. Additionally, the 104 BCD chainring allows for easy disc replacements, giving you the flexibility to customize your bike as needed. This crankset is an excellent choice for cyclists looking for reliability and performance.

The VANICE 8mm Crank Bolt is essential for securing your bike’s crank arm. This set includes two durable steel bolts with an 8mm hex head, ensuring a reliable fit for your bicycle. Each bolt comes with a plastic dust cap, which helps keep out dirt and debris, extending the life of your components. With a size of M8x1.0mm, these bolts are designed for easy installation using a metric 8mm allen wrench, making it convenient for you to maintain your bike without hassle.

The Epessa Crank Arm is a high-quality option for those looking to replace their bike's left crank arm. It comes in two interface types—diamond and square—allowing you to choose the one that matches your existing setup. With a hole spacing of 170mm, it ensures compatibility with your original crank arm length, providing a secure fit. Made from durable aluminum alloy, this crank arm is built to last. Additionally, it fits standard 9/16 inch pedals, making it a versatile choice for various biking needs.

The BAFANG Crank Arm Set is built from high-quality aluminum alloy, ensuring it can handle tough terrains and harsh weather while lasting for years. You'll enjoy improved performance with a smoother and more stable ride thanks to its lightweight design and precise engineering. Compatibility is another highlight, as this crank arm set fits most Bafang mid-drive motor systems, making integration into your existing e-bike setup easy. It's specifically designed for BAFANG models like BBS01, BBS02, BBSHD, and M200, provided your original crank arm has a diamond hole interface.

The BALINGE Bike Crankset offers a robust and dependable solution for your cycling needs. With its durable steel and aluminum alloy construction, you can count on this crankset to withstand the rigors of mountain biking. Weighing approximately 650g, it strikes a balance between strength and lightweight design, making your ride more efficient. The 34T chainring is compatible with a wide range of speeds, from single-speed to 12 speeds, ensuring versatility for different biking styles. Additionally, the drop stop design helps prevent chain drops, making chain installation easier and improving your overall biking experience.

The WEEROCK Mountain Bike Crankset features a durable 32T chainring made of high-strength steel, ensuring longevity and reliability for your rides. It is designed to be compatible with single-speed bicycles and bikes with 6 to 11 speeds, giving you versatility for various cycling needs. The drop stop design prevents the chain from slipping off, enhancing your cycling safety and performance. Additionally, the lightweight aluminum alloy arms, measuring 170mm, resist rust and provide ease of handling, making your biking experience smoother and more enjoyable.