Shimano Nexus NX-30 Dynohub 100mm Front hub
| Hub Data | ||
|---|---|---|
| Manufacturer | Shimano | |
| Model | Nexus NX-30 Dynohub | |
| Descriptor | discontinued model | |
| Position | Front | |
| Axle Type | 9mm | |
| OLN | 100 mm | |
| Spoke Interface Type | J-Bend | |
| Brake Compatibility | rim brake | |
| Drive Interface | n/a (front) | |
| Internal Gearing | none | |
| Dynamo Type | 6v 3w (26"-29") | |
| Spoke Hole Diameter | 2.5 mm | |
| Left Flange Diameter | 80 mm | |
| Right Flange Diameter | 80 mm | |
| Left Flange Offset | 28 mm | |
| Right Flange Offset | 28 mm | |
| Mid-Flange Offset | 0 mm (centered) | |
| Weight | 0 g | |
| URL | http://www.peterwhitecycles.com/nexus.asp | |
| Metadata | ||
|---|---|---|
| Hub ID | 189 | |
| Record Status | Public | |
| Created | Mar 19, 2010 1:28pm | |
PLEASE NOTE: Shimano publishes hub dimensions in a relatively confusing manner on bike.shimano.com. They seem to provide the outside-to-outside flange spacing, and an overall offset of the flanges as a whole. Wheelbuilders are interested in the distance from the midpoint between locknut faces to the middle of the flange (not the inside or outside face). When necessary, I convert Shimano's data into useful spoke calculation dimensions with some simple arithmetic, and factor in 3mm thick hub flanges (an approximation). The formula is to divide spacing by two, add or subtract the overall offset, then subtract half of our assumed 3mm flange thickness. Please check the notes to see if the values for this part are derived from Shimano's published data or actual measurements of a hub specimen. -Karl
DISCONTINUED MODEL!
It's listed here to help avoid confusion among other models still made by Shimano.
Info from Peter White Cycles:
"Drag with the Nexus is higher than with the more expensive Schmidt hub. In fact, at most speeds the Nexus has higher drag when its light is turned off than the Schmidt has when its light is turned on. You get what you pay for. But the drag is less than with the Busch&Müller Dymotec 6 sidewall generator when the light is turned on. Because the hub also has some drag even with the light off, I don't recommend it for longer events such as brevets and long tours. For touring, the Dymotec sidewall dynamo would be a better choice, since in daylight, with the light off and the dynamo disengaged, there is zero drag, and most people don't tour by bicycle in winter, when snow will cause a sidewall dynamo to slip. Drag with the Schmidt hub is so low with the light off that it isn't an issue."
(http://www.peterwhitecycles.com/nexus.asp)
It's listed here to help avoid confusion among other models still made by Shimano.
Info from Peter White Cycles:
"Drag with the Nexus is higher than with the more expensive Schmidt hub. In fact, at most speeds the Nexus has higher drag when its light is turned off than the Schmidt has when its light is turned on. You get what you pay for. But the drag is less than with the Busch&Müller Dymotec 6 sidewall generator when the light is turned on. Because the hub also has some drag even with the light off, I don't recommend it for longer events such as brevets and long tours. For touring, the Dymotec sidewall dynamo would be a better choice, since in daylight, with the light off and the dynamo disengaged, there is zero drag, and most people don't tour by bicycle in winter, when snow will cause a sidewall dynamo to slip. Drag with the Schmidt hub is so low with the light off that it isn't an issue."
(http://www.peterwhitecycles.com/nexus.asp)