Shimano Nexus Inter-7 SG-C3001-7C (steel shell) 127mm Rear hub
| Hub Data | ||
|---|---|---|
| Manufacturer | Shimano | |
| Model | Nexus Inter-7 SG-C3001-7C (steel shell) | |
| Descriptor | ||
| Position | Rear | |
| Axle Type | 3/8" (9.5mm) | |
| OLN | 127 mm | |
| Spoke Interface Type | J-Bend | |
| Brake Compatibility | coaster brake | |
| Drive Interface | single cog driver | |
| Internal Gearing | 7 speed | |
| Dynamo Type | none | |
| Spoke Hole Diameter | 2.9 mm | |
| Left Flange Diameter | 83.6 mm | |
| Right Flange Diameter | 84 mm | |
| Left Flange Offset | 31.3 mm | |
| Right Flange Offset | 21.8 mm | |
| Mid-Flange Offset | -4.8 mm (to the left) | |
| Weight | 1908 g | |
| URL | https://productinfo.shimano.com/en/produ... | |
| Metadata | ||
|---|---|---|
| Hub ID | 1825 | |
| Record Status | Public | |
| Created | Jun 4, 2025 1:32pm | |
| Contributed By | Karl | |
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
6/4/2025 -- Dims measured on a new SG-C3001-7C hub with coaster brake. Note that this hub has a steel hub shell! Spacing is between 127 and 128mm, official specs seem to say 127, JBI says both 127 and 128. Weight of 1908g is with all loose hardware removed (axle nuts, cog, cassette joint, etc). -Karl