Shimano RSX FH-A410 130mm Rear hub

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Hub Data
Manufacturer Shimano
Model RSX FH-A410
Position Rear
Axle Type 10mm
OLN 130 mm
Spoke Interface Type J-Bend
Brake Compatibility rim brake
Drive Interface Shimano 7 (30.9mm)
Internal Gearing none
Dynamo Type none
Spoke Hole Diameter 2.6 mm
Left Flange Diameter 45 mm
Right Flange Diameter 45 mm
Left Flange Offset 35.3 mm
Right Flange Offset 19.2 mm
Mid-Flange Offset -8.1 mm (to the left)
Weight 346 g
Hub ID 386
Record Status Public
Created Jun 11, 2018 6:32pm
hub dimension diagram
PLEASE NOTE: Shimano publishes hub dimensions in a relatively confusing manner on 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
Early 130mm 7spd road hub. Dims/weight from a well-used specimen cut from a wheel. "U.S. Pat. 14580670" Has a 4mm spacer under the left side locknut that can be removed to create 126mm spacing for backwards compatibility, but this will move both flanges 2mm to the left, making the dish worse. (to calculate for this configuration, use this hub data and specify a hub offset of -2.0mm) -Karl

Locknut to FHB flange is about 38mm. -Karl