LED lighting power!

specs on the Shimano Sport Dynamo DH-3D71 Front 32h Centerlock Hub (HU7872)

Features and Information
* Rolling resistance with lamp off is reduced by 70%
* Double-contact seal mechanism
* Ultegra/XT grade polished bearing races
* Centerlock disc brake compatible
* Quick-release, 32 hole
* Includes Hub Wire Connector Cap & Cover

Dynamo
* 6V, 3.0W output

Item Specifications
Color Silver
Front Wheel Type Mountain
Front Hub Spacing 100 mm
Front Axle Type 9x1
Hub Flange Diameter 73.5 mm
Hub Center to Flange 20 mm
Skewer Included Yes
Intended Use Mountain
Hub Drilling 32 spokes
Hub/Brake Compatibility Center-Lock Disc


Mavic X517 V rim: 542mm ERD