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 heatsink 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.
Technical details:
Hole numbers: 36
Increasing the cooling surface: 200 cm2
Color: black anodised
Heatsink: black anodized aluminum, 5 piece
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