Quick Guide to SP Dynamo Hubs

The differences between the Shutter Precision PV, PD, PL, PDX, PLX, SD, and SV hubs lie primarily in their compatibility with different braking systems and axle types, as well as their power output ratings:

  • PV-8: Designed for rim brakes, with a power output rating of 6V/3W.

  • PD-7: designed for ISO 6-Bolt disc brakes and a QR12 thru axle with a 6V/3W power output

  • PL-7: designed for Centerlock disc brakes and a QR12 thru axle with a 6V/3W power output

  • PD-8: Intended for ISO 6-Bolt disc brakes with a QR axle & a power output of 6V/3W.

  • PL-8: Suitable for CenterLock disc brakes with a QR axle with a power output of 6V/3W.

  • PD-8X: Designed for ISO 6-Bolt disc brakes and a QR15 thru axle, with a power output of 6V/3W.

  • PL-8X: Intended for CenterLock disc brakes and a QR15 thru axle, also with a power output of 6V/3W.

  • SV-8: Designed for rim brakes, but with a slightly lower power output rating of 6V/2.4W.

  • SD-8: Intended for ISO 6-Bolt disc brakes, also with a power output of 6V/2.4W.

Regarding the difference between 6V/3W and 6V/2.4W:

  • A 3W hub can generate more power, offering better charging performance.

  • A 2.4W hub is slightly lighter.

  • A 2.4W hub can be suitable for smaller wheels (e.g., 20"), as the smaller wheel size allows for faster spinning, compensating for the reduced power rating.

  • LED lighting is efficient enough to produce adequate light from a lower-powered hub, making a 2.4W hub suitable for LED lights.

  • While a 3W hub is generally recommended for use with a USB charger for optimal charging performance, efficient lighting systems like the Revolution and Reactor can still function well with a 2.4W hub if needed.

Overall, a 3W hub is typically recommended for better charging performance and brighter headlights when using a charger and headlight simultaneously.

Can’t find what you’re looking for online? Contact us and we’ll be able to order in whatever SP Dynamo Hub you need for your bike.