Air-cooled drum brakes for fast cars and mountainous topography.
The basis for this hub is the Sturmey Archer drum brake X-SD.
By mounted heatsinks hub can dissipate a lot of heat energy. So the brakes are less thermally stressed and the spoke tension can not fall so much. This extends the life of the wheel increases.
The air-cooled + hub is available in various configurations. Make sure when choosing your vehicle. For the assembly of carbon caps only specimens with machined outer flange can be used.
Hole numbers: 28, 32 und 36
Increasing the cooling surface: 400 cm2
Color: silver, black anodized
Heatsink: black anodized aluminum, 10 pcs