SP PL-8 Dynamo Hub (Center Lock Disc Brake, 3.0 Watts, available for 32H/36H) Black and Silver - Lightest and Most Efficient on the Market (Black, 32 hole)

SP Dynamo hubs are the Lightest and Most Efficient dynohubs on the market. They produce the unmatched 72% efficiency when lights are on (tested at 15 km/h), which is 17-20% more efficient than their Japanese and German rivals. The efficiency gap widens further as speed increases.

The SP dynamos are not only the most efficient, they are also the lightest dynamo hubs on the market. In addition to the world's top performance metrics, their sophisticated dynamo cores attains the unprecedented total weight of under 400 grams (14 ounces).

StVZO Tested and Certified Tested under the German StVZO "Golden Standard" specs and carry Approval Certificates # K845 and K961.

Small, Light, and Powerful The lightest and most compact on the market, each under 400 grams (14 ounces) in weight.

Virtually Drag-Free The SP dynamos are virtually drag-free, exhibiting 25-50% less drag than their competitors.

Friendly for Your Feet Due to high efficiency, the wheels build using SP Dynamos reduce foot fatigue and; they require less of the rider's energy to produce higher output. SP are truly the most cyclist-friendly dynamos on the market.

Compatibility The PD-8X Series have been specifically optimized for the 26"/700c/29er road and mountain bikes.

P-series: 6V3W output for 26"/700c/29er wheels 6V2.4W output for 20" wheels

Longest Warranty in the Industry 2-year limited manufacturer's warranty when purchased from the authorized distributor such as Dynamo City.