Replacing a bike chain is a routine maintenance task for any cyclist, but e-bikes can sometimes present unique challenges. One common issue, especially for e-bikes with hub motors, is chain length. Standard bicycle chains often come in lengths that are insufficient for some e-bike setups. This article explores the problem of chain length in e-Bike Chain Replacement and offers a solution using longer chains designed for e-bikes.
Many e-bike owners, particularly those with models like the Juiced Bike CrossCurrent S, discover that the stock chain is already nearing its maximum recommended length when new. This means when it’s time for a bike chain replacement, a standard 116-link chain might be too short. Using two standard chains and joining them with two master links isn’t an ideal solution for many riders due to concerns about reliability and extra complexity.
Fortunately, manufacturers like Shimano recognize this need for longer chains on e-bikes. Their “STEPS” e-bike mid-drive replacement chains, such as the Shimano CN-E6090-10, are specifically designed to be longer, coming in at 138 links. These chains are intended for Shimano STEPS e-bike systems but can also be a great option for other e-bikes requiring a longer chain. You can find these chains at retailers like Jenson USA, as linked in the original post.
These e-bike specific chains are often built to be more robust. Mid-drive e-bike chains need to handle significant torque, suggesting they are constructed with greater strength compared to standard bicycle chains. Interestingly, while designed as 10-speed chains, they are generally compatible with 9-speed drivetrains, offering versatility for different e-bike setups. However, the reverse is typically not recommended – using a 9-speed chain on a 10-speed system.
While some riders might be drawn to brands like KMC, others prefer to maintain component consistency within their drivetrain, opting for Shimano chains for Shimano drivetrains. For those seeking premium options, Connex chains, particularly the Connex 9Se model with 132 links, are highly regarded for their quality, although they come at a higher price point.
Measuring bike chain length for replacement
In conclusion, when considering a bike chain replacement for your e-bike, especially if it has a hub motor or a larger frame, it’s crucial to verify the correct chain length needed. Exploring e-bike specific chains like the Shimano CN-E6090 can provide a solution for those needing longer chains and potentially enhanced durability. Always ensure compatibility with your e-bike’s drivetrain and consider factors like chain strength and preferred brands when making your choice.
