FSA Bosch E-Bike Sprocket - Black - 15T

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Best current price£20.95from Leisure Lakes Bikes
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Leisure Lakes Bikes£20.95Visit shop Bosch E-Bike Sprocket Black 15T
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The FSA Bosch E-Bike Sprocket is an essential upgrade for electric bike owners using Bosch motor systems who prioritize longevity and consistent power transfer. Engineered with heat-treated materials, this 15T sprocket is built to withstand the high-torque demands of e-bike propulsion, though users must ensure it is compatible with their specific drivetrain configuration before installation.
| Model Part Number | 32700020033250 |
|---|---|
| Brand | FSA |
No, this sprocket is specifically engineered for Bosch motor systems and may not align or fit correctly on other drive units.
The sprocket generally does not include the lockring; reuse your existing lockring or purchase a compatible replacement if the original is damaged.
Check the markings on your current sprocket or refer to your e-bike manufacturer's specifications to ensure you maintain the correct gear ratio.
Replacement frequency depends on usage intensity, but it is generally recommended to replace the sprocket every 2-3 chain replacements.
If you have the proper tools, such as the Bosch-specific drive unit lockring tool and a torque wrench, it is a manageable task for an experienced DIY mechanic.
Inspect the sprocket teeth for wear; if the teeth appear hooked or sharp, the sprocket and chain should be replaced simultaneously.
Ensure you are using the correct Bosch-compatible lockring tool and that you are turning in the correct direction; some motors have reverse-threaded lockrings.
To install this sprocket, you will need a dedicated e-bike lockring tool or the specific tool compatible with your Bosch motor drive unit. Always ensure the motor is powered off before attempting maintenance. To maintain the sprocket, keep your chain clean and properly lubricated to reduce metal-on-metal friction. Inspect the teeth periodically for signs of 'hooking' or wear, especially if you notice the chain skipping under load, which is a common indicator that both the chain and the sprocket require replacement.