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  • My son hub is making more noise than usual.
    I have a front light, rear light and usb charger. Usually when just one or two of them are on you can barely notice the drag of the hub. If all three are on you then can feel the drag and hear a buzzing noise from the hub.
    The last couple of days I’ve had the buzzing and dragging even if it’s just one thing being powered.
    Any ideas?
    Do these hubs need servicing?

  • Son can get serviced. And if it's not as good as it used to be it might need one?

  • You can send the hub/wheel to SON for servicing via SJS. It's an excellent service - capped at £65 for new internals and mine have all been returned within a few weeks.

  • I have an old SON 28 klassik on my old single speed's front wheel running some cheap B&M combo, it's a bit of a chunk but rolls smoothly at any speed I've been able to hit. On my new bike I have the newer SON28 with the spherical hub design and running SON front and rear lights, and I definitely notice a buzzy feel and sharp rise in effort somewhere around the low 30kph region, when the lights are switched on.

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