Electric bike enthusiasts and DIY repair folks, listen up! If your mid-drive motor is making weird noises or not engaging properly, these replacement gears could be the fix you need. This kit includes three 36-tooth nylon planetary gears with bearings plus a 70mm steel clutch - basically everything that typically wears out in those 250W and 350W mid-drive systems. The nylon gears are surprisingly durable and run quieter than metal ones, while the steel clutch provides that reliable engagement you need. The dimensions are precise - 38mm outer diameter, 8mm inner diameter for the gears, and the clutch measures 70mm across with a 15mm center hole. Installation requires some mechanical know-how and the right tools, but if you're comfortable working on your ebike's internals, it's a straightforward swap. The workmanship is actually really good - clean molding, smooth operation, and they fit perfectly as direct replacements for the worn factory gears. Having three gears in the kit means you can do multiple repairs or have spares ready. Just make sure to measure your existing gears first to confirm compatibility, but for most common 250W and 350W mid-drive motors, this is exactly what you need to get your electric bike running smoothly again without paying for a whole new motor assembly.
Free 30-day returns 
Free 30-day returns
