"If you've ever tried to lube the chain on a mid-drive e-bike, then you are probably already aware that it can be a bit of a hassle. Since the cranks don't engage the chainring when spun backwards, you can't backpedal the drivetrain. This means you need to put the bike in a work stand, have someone lift the rear wheel, or flip the bike over so you can pedal the bike forward to lubricate."
"" The mechanics of an e-bike motor means that the cranks spin backwards freely without engaging the chainring. To lock the chainring to the crank, the Squirt eZ-Luber slots around the crank arm and then hooks the chainring with a cylindrical turn hook." With the eZ-Luber coupling the chainring and crank together, it's then possible to backpedal the drivetrain and lubricate the chain as usual."
Mid-drive e-bikes often prevent backpedaling because the motor allows cranks to spin backwards without engaging the chainring, which complicates chain lubrication. Typical workarounds include using a work stand, lifting the rear wheel, flipping the bike, or employing ad-hoc DIY methods to couple the crank and chainring. The eZ-Luber is a purpose-built tool that slots around the crank arm and hooks the chainring with a cylindrical turn hook to lock both together, allowing normal backpedaling for lubrication. The device installs in about 20 seconds and lubrication takes roughly 30 seconds. The tool is compatible with any chain lube; Squirt recommends Squirt E-Bike Chain Wax.
Read at Bikerumor
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