MADISON REAR HUB SATIN BLACK

General Description

The Madison Satin Black hub is a sealed-bearing hub developed for fixie and track bicycles, intended for demanding urban and sporting use.

The hub is machined through multiple processes from solid 6061 T6 round aluminum bars (not forged) and features a satin black anodized finish (not paint), ensuring durability, corrosion resistance, and a sober, uniform appearance.

It provides smooth and reliable operation thanks to the use of low-friction sealed bearings and geometry designed for proper wheel building for both fixed and singlespeed use.

Main Features

Satin black anodizing (not paint) over 6061 aluminum, offering high strength and long service life.

Hub machined in multiple processes from aluminum bars, ensuring dimensional precision and repeatability.

6000ZZ sealed low-friction bearings.

Clean and functional design focused on performance and durability for daily and track use.

System and Compatibility

The hub features a Fixed – Track – Flip-Flop / Singlespeed system, allowing the use of a fixed cog or freewheel depending on the configuration chosen by the user.

Adjustment Type

Axle fastening system: hex nut

Nut size: 15 mm

Nut material: SAE 1045 steel

Surface treatment: chrome plated

Floating washer included

System compatible with track and fixed gear frames with horizontal dropouts.

Materials

Shell: 6061 aluminum

Axle: Siemens-Martin steel

Bearing cover: 6061 aluminum

Knurled locknut: AISI 304 stainless steel

Lockring: AISI 304 stainless steel

Technical Specifications

Rear Hub

Flange diameter: 70 mm

Over Locknut Dimension (OLD): 120 mm

System: Fixed / Track / Flip-Flop / Singlespeed

Fixed cog thread: 1.375" × 24 TPI

Lockring thread (ISO, left-hand): 33 mm (1.299")

Freewheel thread: 35 mm × 24 TPI

Bearings

The bearing system uses 6000ZZ sealed low-friction bearings. These bearings ensure smooth and stable rotation, with low internal resistance and consistent mechanical performance in both urban and competitive use.

Approximate Weight (depending on configuration)

Fixed–Fixed: ~290 g

Fixed–Free: ~280 g

Free–Free: ~270 g

Load Capacity

Recommended maximum weight: 120 kg (rider + bicycle )