Best Bike Crankset Crank Arms of 2026

The All Mountain Style Crank Boots offer excellent protection for your bike's crank arms, shielding them from tough impacts when riding on rough trails. These guards help you ride longer by extending the life of your crankset, keeping your bike in great shape. Made from strong TPU material, they resist wear and tear even in extreme cycling conditions, so you don't have to worry about damage. Plus, you can customize your bike’s look by choosing from several colors, letting you add a personal touch without sacrificing protection. These crank boots are a smart choice for serious riders who want durability and style.

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 Race Face Crank Boot is designed to protect your carbon crank arms from damage and wear. Made with durable, proprietary plastic, this boot offers reliable coverage to keep your bike parts safe during rides. The protective rubber material cushions your crank arms, helping to prevent scratches and impacts that can happen on rough trails or during transport. If you want to extend the life of your carbon cranks and maintain their appearance, this boot provides an easy and effective solution.

The KIEVODE 8mm Crank Bolts are designed to fit a wide variety of bikes, including those with square tapered and standard bottom brackets, giving you great flexibility. Their precise M8 thread size and 18mm length ensure a perfect fit, making installation straightforward. These bolts come with built-in plastic dust caps, which protect them from water, dirt, and sand, helping your bike last longer and reducing maintenance. Installing them is easy—you just need an 8mm Allen wrench to secure them properly. Overall, these bolts offer a reliable and hassle-free solution for your bike’s crank arm attachment.

SRAM Crank Arm Boots are designed to protect your carbon fiber Eagle cranks from scratches, dents, and impacts, helping you keep your bike looking sharp and functioning well. Their sleek black finish not only adds style but also offers durable protection, so your investment stays safe. Built to handle tough off-road conditions, these guards give you confidence when riding on rough trails. Plus, they are easy to install and fit perfectly, making it simple for you to preserve your crankset’s strength and longevity without hassle.

The Relwears Bike Crankset FC-TY301 is designed for versatility and performance. With a gear combination of 24-34-42T and a crank arm length of 170mm, it easily fits 3x6, 3x7, and 3x8 speed drivetrains. The aluminum alloy construction makes it lightweight yet sturdy, improving the overall strength and balance during rides. You will appreciate the smooth and reliable shifting, thanks to the precision indexing. Assembly is quick and straightforward, allowing you to get back on your bike without hassle.

The Rhinenet Left Crank Arm is crafted from high-quality materials, ensuring durability and strength for your biking needs. Its lightweight design makes installation a breeze, allowing you to quickly replace your crank arm without hassle. With a 170mm length, it fits perfectly without interfering with the chain ring bolt, enhancing your bike's efficiency. This crank arm set is versatile, suitable for a range of bicycles, from BMX to electric and mountain bikes, making it an excellent choice for any cyclist looking to upgrade their ride.

The BAFANG Crank Arm is an essential part and accessory for BAFANG mid-drive motors BBS01, BBS02, BBSHD, and M200 motor. It is made of durable aluminum alloy and has a diamond interface hole. The length of the crank arm is 170mm with a hole spacing length of 170mm, and it comes in a drive and non-drive side. The left side pedal is reverse threaded, which tightens it backward. The product is shipped fast from FBA warehouse or Local Las Vegas Warehouse.

The WEEROCK Steel Crank Arm is designed for cyclists looking for a durable and reliable replacement part. Made from sturdy steel, this crank arm offers strength and long-lasting performance. Its 170mm length provides a comfortable and efficient pedaling experience, suitable for most riders. The diamond-shaped installation hole ensures a secure fit on your bike, making installation straightforward and stable. Weighing only 0.3 kilograms, this crank arm is lightweight enough to maintain your bike’s balance while contributing to smooth riding. If you need a solid and easy-to-install crank arm, the WEEROCK Steel Crank Arm is a practical choice.

The CMTOTWO Ebike Crankset is designed to enhance your riding experience by offering several practical features. Its double-layer chain guard keeps your chain secure and prevents it from slipping off, so you don’t have to worry about interruptions while cycling. This guard also protects your pants from getting dirty, adding convenience to your daily rides. Made with a steel chainring and an aluminum alloy crank arm, the crankset is built to last and withstand regular use. The lightweight yet strong crank arm resists rust and fits standard 9/16 inch pedals, making it easy to install on various bikes including single-speed, electric, and fat tire models.