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SP PD-8X Dynamo Hub

The SP PD-8X is more efficient, technologically advanced and simpler than competing hub dynamos while also being 40 grams lighter in weight than any QR15 hub dynamo available.

Current tests show the PD-8X to have achieved a new record breaking efficiency of 78 percent (i.e. watts of mechanical energy converted directly in watts of electrical energy - minus wasted muscular effort that would otherwise be propelling rider and bicycle forward), ranking it above the SP 8 series hub dynamos which previously ranked highest in the world at 72 percent.

  • QR15 compatible
  • Comes complete with adaptors for standard 9mm QRs
  • Weight: 420g
  • Quick release not included

The PD-8X is the 6 bolt disc model. For centerlock discs, see the PL-8X.

We also offer dynamo wheel builds on any dynamo hub - contact us for availability and advice on build options.

Note: Please allow up to 2 weeks for delivery.

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The SP PD-8X is more efficient, technologically advanced and simpler than competing hub dynamos while also being 40 grams lighter in weight than any QR15 hub dynamo available.

Current tests show the PD-8X to have achieved a new record breaking efficiency of 78 percent (i.e. watts of mechanical energy converted directly in watts of electrical energy - minus wasted muscular effort that would otherwise be propelling rider and bicycle forward), ranking it above the SP 8 series hub dynamos which previously ranked highest in the world at 72 percent.

  • QR15 compatible
  • Comes complete with adaptors for standard 9mm QRs
  • Weight: 420g
  • Quick release not included

The PD-8X is the 6 bolt disc model. For centerlock discs, see the PL-8X.

We also offer dynamo wheel builds on any dynamo hub - contact us for availability and advice on build options.

Note: Please allow up to 2 weeks for delivery.

Ordering Dynamo Hubs

Please contact us before ordering to check availability and to check what size and type of hub you need.

About Us

Good Rotations is an independent online bikepacking and adventure cycling store.

If you are looking for a complete brevet or expedition setup, advice on gear, or help with finding the right bikepacking bag or dynamo system, we're here to assist.

Get in touch: hello@goodrotations.co